Die besten Class-D Verstärker / Digitalverstärker

Die Vorteile von Class-D-Verstärkern im Vergleich zu "herkömmlichen Verstärkern" sind der deutlich höhere Wirkungsgrad (geringerer Stromverbrauch) sowie der geringere Materialeinsatz.
Man könnte Class-D-Verstärker also Öko-Verstärker nennen ;-)
Durch die deutlich geringere Verlustleistung / Abwärme können sehr kräftige Verstärker mit sehr kompakten Abmessungen realisiert werden, was die Hausfrau sicher erfreut...

Häufig wird den Class-D-Verstärkern ein nerviger Klang nachgesagt. Dieses stimmt zwar bei einigen Herstellern, es zu pauschalisieren ist aber schlichtweg Unsinn.
Fähige Entwickler realisieren durch entsprechende Auslegung der Vorstufensektion durchaus harmonisch klingende und kräftige Miniverstärker zu interessanten Preisen.
So setzt z.B. NuPrime Class-A-Vorverstärker und Pro-Ject Röhrenvorverstärker-Schaltungen ein um das Klangbild harmonisch abzustimmen.
Auch der holländische Hersteller Hypex beweist mit den neuen N-Core-Verstärkermodulen, dass moderne Class-D-Schaltungen durchaus in der oberen Klasse mitspielen können.
Die Hypex N-Core Verstärker bekommen Sie bei uns auf Anfrage.

 

NuPrime STA-9
NuPrime STA-9, brückbare Stereo-Endstufe, A&V-Tip !
NuPrime STA-9, brückbare Stereo-Endstufe, A&V-Tip !
NuPrime STA-9, Class A+D HighTech Stereo Endstufe, brückbar bis 290W mono Die NuPrime STA-9 ist eine 2x120W Class A+D Hybrid Stereo-Endstufe die auch auf 1x 290W Mono gebrückt betrieben werden kann. Die Schaltungstechnik ist auf geradzahligen Klirr getrimmt und spiegelt dadurch die klanglichen Eigenschaften von Röhrenverstärkern wieder ohne deren Einschränkungen und Limitierungen zu unterliegen. English Information The NuPrime STA-9, a 2 X 120W Class A+D stereo amp, bridgeable into a 290W mono amp, is designed with enhanced even-order harmonic circuitry that mimics the most attractive features of tubed-amp sound without incurring tubes’ drawbacks and limitations. The STA-9’s spacious, transparent, dynamic and luxuriously textured soundstage has to be heard to believe.  The STA-9 amplifier is derived from the ULCAM (Ultra Linear Class A Module)+Class D design first introduced in the IDA-8. By joining a powerful high impedance singled ended amplifier circuit in the preamp stage with a well integrated Class-D power stage, the STA-9 delivers a rich tube-like sound with the remarkable speed and clarity of NuPrime Class-D design. Audio enthusiasts are bound to be impressed. The NuPrime amp circuit improves on traditional Class-D design by using a self-oscillating circuit to generate pulse-width modulation. The amplifier switches at a frequency of 550kHz, well beyond the compact disc’s 44.1kHz sampling rate. Most class-D amps switch at 300kHz or lower. Completing the ensemble is NuPrime’s new linear power supply with its high-efficiency toroidal transformer for reduced high-frequency noise and strengthened low-frequency performance. The damping effect of the NuPrime isolation feet (patent pending) absorbs and cancels vibrations that degrade audio performance. The overall result is unprecedented transient speed and an almost shocking level of dynamic impact.The STA-9’s frequency response to 50 kHz elevates vocals into emotional experiences; similarly, instrumental upper registers mimic a live performance’s shimmering heights. Features Single End Class A + D amplifier design Bridgeable allowing switch between stereo or mono mode. Enhanced even-order harmonic (H2) circuitry resembling the most attractive features of tubed-amp sound without its drawbacks and limitations. Highly reliable under no-load condition and enhanced short circuit protection. High output current drive capability for low impedance speakers. 550 KHz switching frequency for accurate reproduction of musical signal. New linear power supply with a high-efficiency toroidal transformer. Reduced high-frequency noise and strengthened low-frequency performance. Signal path avoids cross-linking capacitors, thus achieving a frequency response at DC level for pure musical enjoyment. How did STA-9 achieve tubed-amp sound? The front-end circuit of the STA-9 employs the same structure as that of the HPA-9: a single-end JFET structure that mainly simulates the sound characteristics of a triode by the addition of 2nd harmonics. The 2nd harmonic of a vacuum tube and STA-9 are high, resulting in an SNR measured value > 90DB. This does not mean that the STA-9 produces audible noise; rather, it is the effect of 2nd harmonic’s appealing coloration. The bandwidth of the front-end circuits of the STA-9 and HPA-9 are up to 300KHZ, which produce a more natural sound. With very low negative feedback, the sound is smooth and relaxed rather than harsh. How did STA-9 mono achieve better sonic characteristic, in addition to more power than STA-9 stereo ? The standard method for bridging a stereo amp into mono employs a series of op amps (OPA) in order to invert the input signals to one of the stereo amp, thereby creating an opposite phase, which can then be combined to increase power. Conversely, the STA-9’s innovative bridging circuit utilises a design we call Single-Ended Direct-Inject Bridge Technology, in which the mono mode, in addition to acquiring more than double the power, sounds livelier and more dynamic. The NuPrime Sound Vast soundstage Wide, lightning-fast dynamics Ultra-low distortion and noise Music emerges from a pristine background, with delicate details and nuances intact In summary, NuPrime’s sonic character stands well apart from – and indeed above – the soft, cushy sound we often associate with most tubed amplification or the dry, clinically edgy sound we often associate with solid-state and switching technology. Rarely does an amp achieve an ideal balance of richly textured timbres and harmonics, bottom-end authority, startling dynamics, exquisite low-level detail, and a fully revealed, fully dimensional soundstage against a backdrop of mile-deep silence. Technical Details Inputs RCA: Un-Balanced input x 1 XLR: Balanced input x 1 Outputs Stereo Speaker Out x 1 or Mono Speaker Out x 1 Power: 2 X 120W / 1 X  290W @ 8 & 4 Ohms Peak Output Power: 2 X 280W / 1 X 320W @ 8 & 4 Ohms Specification Input Impedance: 47k Ohms Input sensitivity: 232.8mV, 1W @ 8 Ohms Gain: x 22 Signal to Noise Ratio: < -95dB at 1W, 10W, 100W THD+N: 0.02% (Stereo) / 0.01% (Mono) Frequency Response: 10Hz to 50kHz Worldwide AC voltage: (115 VAC / 230 VAC) with Voltage Select Switch AC Fuse: Slow-blow, 3A, 250VAC Dimension:  235 mm W x 281 mm D x 55 mm H (including feet) Weight: 4.75 kg Color: Black or Silver In a 110V outlet, the idle-power consumption is below 14W. In a 230V outlet, the idle-power consumption is below 16W.

895,00 €*
NuPrime STA-9X-black-front
NuPrime STA-9X, brückbare Stereo-Endstufe
NuPrime STA-9X, brückbare Stereo-Endstufe
NuPrime STA-9X, Class A+D HighTech Stereo Endstufe, brückbar bis 330W mono Die NuPrime STA-9 ist eine 2x130W Class A+D Hybrid Stereo-Endstufe die auch auf 1x 330W Mono gebrückt betrieben werden kann. Die Schaltungstechnik ist auf geradzahligen Klirr getrimmt und spiegelt dadurch die klanglichen Eigenschaften von Röhrenverstärkern wieder ohne deren Einschränkungen und Limitierungen zu unterliegen. English Information The NuPrime STA-9X, a 2 X 130W Class A+D stereo amp, bridgeable into a 330W mono amp, is designed with enhanced even-order harmonic circuitry that mimics the most attractive features of tubed and Class-A amp sound without incurring their drawbacks and limitations. The STA-9X’s frequency response to 50 kHz elevates vocals into emotional experiences; similarly, instrumental upper registers mimic a live performance’s shimmering heights.Features: Improved over STA-9, the STA-9X Single End Non-Negative Feedback Class A and Dual Feedback Class D amplifier design derives from AMG STA. This design allows STA-9X to produce more details and higher resolution than STA-9. Stereo mode bridgeable into mono mode. Enhanced even-order harmonic (H2) circuitry creates warmth and natural sound characteristic. Highly reliable under no-load condition and enhanced short circuit protection. 130% higher output current drive capability than STA-9 allows low impedance speakers to have better dynamic and power. Operating at 750 kHz switching frequency, it produces high resolution with extended frequency. A new linear power supply with a high-efficiency toroidal transformer reduces high-frequency noise and strengthened Ow-frequency performance. The signal path avoids cross-linking capacitors, thus achieving a frequency response at the DC level for pure musical enjoyment. The NuPrime Sound: Vast soundstage Wide, lightning-fast dynamics Ultra-low distortion and noise Music emerges from a pristine background, with delicate details and nuances intact In summary, NuPrime’s sonic character stands well apart from – and indeed above – the soft, cushy sound we often associate with most tubed amplification or the dry, clinically edgy sound we often associate with solid-state and switching technology. Rarely does an amp achieve an ideal balance of richly textured timbres and harmonics, bottom-end authority, startling dynamics, exquisite low-level detail, and a fully revealed, fully dimensional soundstage against a backdrop of mile-deep silence.The STA-9X amplifier improved upon the ULCAM (Ultra Linear Class A Module)+Class D design of STA-9 with the design concept from AMG-STA. By joining a robust high impedance singled-ended non-negative feedback amplifier circuit in the preamp stage with a dual feedback Class-D power stage, the STA-9X sounded warm and dynamic with remarkable speed and clarity. NuPrime amplifier improves on traditional Class-D switching design by using a self-oscillating circuit to generate pulse-width modulation. STA-9X switches at a frequency of 750kHz (highest on the market), well beyond the compact disc’s 44.1kHz sampling rate. Most class-D amps switch at 300kHz or lower.Completing the ensemble is NuPrime’s new linear power supply with its high-efficiency toroidal transformer for reduced high-frequency noise and strengthened low-frequency performance. The damping effect of the NuPrime proprietary isolation feet absorbs and cancels vibrations that degrade audio performance. The overall result is unprecedented transient speed and an almost shocking level of dynamic impact.In summary, NuPrime STA-9X has a sound characteristic that is spacious, transparent, dynamic, luxuriously textured with extended high-frequency.Technical Details Inputs:1x RCA Un-Balanced input, 1x Balanced XLR input, TRIGGER IN (12V) Outputs:1x Stereo Speaker Out, 1x Mono Speaker Out, TRIGGER OUT (12V) Power: 2 X 130W / 1 X 330W @ 8 Ohms Peak Output Power: 2 X 170W / 1 X 370W @ 8 Ohms Input Impedance: 47k Ohms Gain: x 28.5 Signal to Noise Ratio: > 90dB at 1W, 10W, 100W THD+N: 0.005% (Stereo) / 0.005% (Mono) Frequency Response: 10Hz to 50kHz Worldwide AC voltage: (115 VAC / 230 VAC) with Voltage Select Switch AC Fuse: Slow-blow, 3A, 250VAC Dimension: 235 mm W x 281 mm D x 60 mm H (including feet) Weight: 4 kg Color: Black or Silver

1.195,00 €*
NuPrime IDA-8
NuPrime IDA-8, Class A-D-Vollverstärker mit DSD-DA-Wandler, A&V-Tip !
NuPrime IDA-8, Class A-D-Vollverstärker mit DSD-DA-Wandler, A&V-Tip !
NuPrime IDA-8, Class A-D-Vollverstärker mit DSD-DA-Wandler, A&V-Tip ! Eigentlich ist uns die Class-D-Schaltung sehr symphatisch, wenig Stromverbrauch, kompakte Maße, wenig Gewicht. Also ökoligisch sinnvoll. Allerdings gab es bisher kaum einen Class-D-Verstärker mit Drehmoment der uns  überzeugen konnte. Selbst hochpreisige Vertreter der Class-D-Fraktion konnten uns nicht wirklich zum Grinsen bringen. Sie klangen immer zu steril und unharmonisch im Hochtonbereich.Abgesehen vom kleinen Gold Note Wunderamp, der allerdings recht schwachbrüstig spielt, sind wir immer wieder bei den altbekannten Schaltungen gelandet. Um­so mehr freut es uns dass wir nun endlich einen musikalischen Ökoverstärker gefunden haben der in unser Sortiment passt und bei der Auswahl der Lautsprecher nicht so zickig ist. Zwar reicht er nicht an das musikalische Flair hochkarätiger Hybrid-oder gar Röhrenamps heran, aber angesichts des Preises ist er tatsächlich ein ganz heißer Tipp. Denn: Der IDA8 verfügt "nebenbei" über einen hervorragenden integrierten DA-Wandler der sogar DSD-Audio-Dateinen verarbeiten kann.Außerdem kann er auch wireless gefüttert werden.Welcome To FutureBei Interesse an einer Vorführung können Sie gerne einen Termin vereinbaren. English InformationThe NuPrime IDA-8 consists of an ultra-low-noise integrated amplifier and digital-to-analog converter that decodes USB PCM 384 and DSD 256 with the convenience of wireless audio in a small, handsomely designed home stereo component. NuPrime's new Class A+D hybrid amplification technologies deliver the substance and warmth of Class A amplification and the efficiency and speed of Class D technology in a milieu of un-measurable noise. The IDA-8's spacious, transparent, dynamic and luxuriously textured soundstage has to be heard to be believedWith all stages in one chassis, the IDA-8 avails itself of the shortest possible signal paths in order to facilitate vanishingly low levels of noise and distortion for a black-velvet background to music. The listener’s initial reaction might very well be “I can’t believe my ears!” The IDA-8’s low noise floor is further complimented by an innovative volume control based on a thin-film resistor design that positions a single resistor in the signal path for each volume setting. Volume changes occur in 99 precise 0.5dB increments for each input’s individually adjustable volume level. Precise level matching is a breeze, as is the user’s ability to make comparisons of music sources. By utilizing discrete components in NuPrime’s ULCAM circuit, the signal can be fine tuned to reduce noise and provide maximum power. The NuPrime amp circuit improves on traditional class-D design by using a self-oscillating circuit to generate pulse-width modulation. The amplifier switches at a frequency of 600kHz, well beyond the compact disc’s 44.1kHz sampling rate. Most class-D amps switch at 300kHz or lower. In addition, NuPrime’s SRC IC chip provides FPGA processing for ultra-low jitter and distortion rates.  Completing the ensemble is NuPrime's new linear power supply with its high-efficiency toroidal transformer for reduced high-frequency noise and strengthened low-frequency performance.  The damping effect of the NuPrime isolation feet (patent pending) absorbs and cancels vibrations that degrade audio performance. The overall result is unprecedented transient speed and an almost shocking level of dynamic impact.The IDA-8 achieves Total Harmonic Distortion + Noise (THD+N) levels of less than 0.005% while achieving a system efficiency of up to 93%. The IDA-8's frequency response to 50 kHz elevates vocals into emotional experiences; similarly, instrumental upper registers mimic a live performance’s shimmering heights.The IDA-8's features and specifications have few equals. Just one audition will convince you that the IDA-8’s performance and sophisticated styling are rarely duplicated at any price point.Features Ultra-Linear Class A Module (ULCAM) achieves audiophile-quality sound with Class-D’s dynamics, speed and efficiency.  Extraordinary result of THD+N lower than 0.0015% and S/N ratio of -130dB for the preamp stage. NuPrime SRC IC chip provides FPGA processing with ultra-low jitter and distortion NuPrime vibration-free isolation feet (patent pending*) State-of-the-art DAC supporting USB PCM 384 and DSD256, that is also capable of decoding DoP formats via coaxial and optical inputs Analog line-out (Sub Out), with 3X the standard output power, provides impressive lows and a wide sound stage specifically designed for subwoofers Extension port for Bluetooth dongle or future release of optional Wi-Fi dongle Full microprocessor control with memory retention Four digital inputs and one stereo input for complete system flexibility Supports DSD native playback by ASIO2.1 and DoP method Ultra-low-noise JFETs in the input stage for the lowest possible noise floor Volume adjustment in 99 precise 0.5dB increments Advanced, thin-film switched-resistor ladder network for controlling volume, with a single resistor in the signal path at any volume setting Individually adjustable volume on each input for precise level matching of sources Exclusive driver software for Windows Standard driver software for Mac Asynchronous transfer mode Very low power consumption on Standby Mode Available in black or silver anodized aluminum finishis Technical DetailsInputs 1 x USB PCM / DSD Digital (PCM up to 384kHz & DSD up to DSD256 ) 1 x Coaxial Digital S/PDIF (PCM up to 192K supporting DoP format DSD64) 1 x Optical Digital S/PDIF (PCM up to 192K supporting DoP format DSD64) 1 x Bluetooth or WiFi receiver module (optional). 1 x Analog Stereo RCA Outputs 1 x pair of stereo speaker (binding posts) output 1 x pair of stereo RCA (6V) Specifications USB Sampling Rates: 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz, 352.8KHz, 384KHz and DSD 2.8MHz, 5.6MHz, 11.2MHz S/PDIF Sampling Rates: 44.1KHz, 48KHz, 88.2KHz, 96, 176.4KHz, 192KHz, 384KHz (Coaxial) Maximum Sampling Rate: 32-bits Bit Resolution: 16-32-bits Power output: 100W x 2 (8-Ohm) THD+N: 0.005% SNR = 95dB Peak Output Power: 280w Frequency Response: 10Hz to 50kHz Dimensions: 235 mm W x 281 mm D x 55 mm H (including feet) Weight: 4.3Kg Worldwide AC voltage: (90VAC~130VAC // 210VAC~ 250VAC) With Voltage Select Switch AC Fuse: Slow-blow, 3A, 250VA

1.195,00 €*
NuPrime_Omnia-A200-front
NuPrime Omnia A200, All-in-One Verstärker
NuPrime Omnia A200, All-in-One Verstärker
NuPrime Omnia A200, All-in-One Verstärker NuPrime A200, der kleine Bruder des A300 genauso leistungsstark in Feinheiten abgestuft ausgestattet bietet er ein unerwartetes klangliches Erlebnis zu einem unerwarteten Preis.Features Streaming Vollverstärker Hochleistungs-Class D Amp 64Bit Quad-Core Arm Cortex CPU Multi-Room mit bis zu 8 Zonen Wandlung PCM 32bit/768KHz DSD 256 Bluetooth apt-X HD, Lan und Wi-Fi Update per Netzwerk Ausgänge: Pre-Out RCA, SPDIF Coax Eingänge: Line-In RCA, SPDIF optisch, USB Ausgestattet mit LAN, WiFi, Bluetooth aptX HD und Airplay, analogen und digitalen Eingängen bietet er mannigfache Eingänge. Multi-Room, Fernbedienung oder App-Steuerung, vorinstallierte Streamingdienste und regelmäßige Softwareupdates machen den A200 zu einem kleinen Alleskönner.Eine Ausgangsleistung von 2 x 150 Watt verpackt in einem hochwertigen abgeschirmten Gehäuse aus gegossenem Metall zeugt von dem hohen Anspruch den der A200 erfüllt.Detailverliebt und kraftvoll klingend zaubert er einen weiträumiges Klangbild das in einem so kompakten All in One Gerät wohl einmalig ist.Technische Daten Power: 150W @ 8 ohms; 250W @ 4 ohms (both channels driven) THD: <0.09% (AUX IN, 1W, @ 8 & 4 ohms) / <0.06% (OPT IN, 1W, @ 8 & 4 ohms)    Signal-to-Noise Ratio: >90 dB (Digital input, 10W out @ 8 ohms) Clipping power: >290W (1kHz @ 4 ohms, both channels driven) Frequency Response: +0.6 dB/-idB (12Hz – 22kHz) Channel Separation: >85 dB (1kHz AUX): >105 dB (10kHz Digital) Input Sensitivity: 0.95V (AUX & OPT) for 100W @ 8 ohms / 0.85V (AUX & OPT) for 100W @ 4 ohms‍ English InformationThe NuPrime Omnia A200 is an affordable, full-featured multi-zone streaming integrated amplifier designed for audiophiles who required CD quality digital sources from local music libraries as well as network streaming music.A summary of the following features put A200 ahead of its peers: Amplifier capable of 2x150W @ 8 ohms and 2x250W @ 4 ohms power Wi-Fi 24-bit/192kHz and Bluetooth 5.0 aptX HD streaming (re-streaming to other Nuprime streaming devices for grouping limited to 16-bit/44.1kHz) Support Optical/Bluetooth/Network and analog inputs Supports all major online streaming services (Amazon Music, Deezer, iHeartRadio, Qobuz, QQ Music, Spotify*, TIDAL*, TuneIn, Napster, Ximalaya), AirPlay*, and network DLNA * Spotify Connect and TIDAL Connect supported. AirPlay2 not supported. ** Mobile devices can stream Bluetooth music to Omnia A200, but it can not stream to Bluetooth earphones.The free iOS and Android app allow you to easily control your smart music system and select your source music and group destination speakers (including receiving streamers) SpecificationsAmplifier Power: 150W @ 8 ohms; 250W @ 4 ohms (both channels driven) THD: <0.09% (AUX IN, 1W, @ 8 & 4 ohms) / <0.06% (OPT IN, 1W, @ 8 & 4 ohms) Signal-to-Noise Ratio: >90 dB (Digital input, 10W out @ 8 ohms) Clipping power: >290W (1kHz @ 4 ohms, both channels driven) Frequency Response: +0.6 dB/-idB (12Hz – 22kHz) Channel Separation: >85 dB (1kHz AUX): >105 dB (10kHz Digital) Input Sensitivity: 0.95V (AUX & OPT) for 100W @ 8 ohms / 0.85V (AUX & OPT) for 100W @ 4 ohms DAC & Wireless Bit Depths: 16/24 bit Optical S/PDIF Input: PCM up to 192kHz Coaxial digital output Analog Line Out Streaming Technologies: Bluetooth 5.0 (aptX HD), DLNA, AirPlay Network Connectivity: Gigabit Ethernet RJ45, 802.11 b/g/n Wi-Fi Streaming Services: Deezer, iHeartRadio, Qobuz, QQ Music, Spotify, TIDAL, TuneIn Listening OptimizationThe linear and neutral sonic bias of the A200 makes it suitable for a wide range of speakers and sources. The EQ presets and loudness (bass enhancement) selections tuned via a high-speed DSP allows further sound tailoring to the system and music.Technical HighlightsNuPrime Omnia A200 accomplishes its seemingly incompatible objectives of being the most powerful, compact, and yet low noise streaming amplifier through the following innovative design features: 1. NuPrime Dynamic Low Noise Switching Power Supply (DLN PS) Design: The power supply has a built-in dual-core dual-system that reacts to the output power demand of the power amplifier. Three levels of control utilizing a small transformer during low power, followed by a large transformer when power demand increases, and finally two power supplies working together to maximize power delivery. The switching frequencies of the power supply are automatically adjusted between 60kHz and 180kHz, according to the output power demand of the power amplifier. 2. The A200 Class-D amplifier achieved low noise through a secondary feedback signal that resulted in clear and detailed sound characteristics. 3. The A200 speaker output incorporates a two-stage output filter to reduce high-frequency frizz for more transparent sound with less listening fatigue. In addition, the A200 utilizes ultra-high thermal conductivity silicon oil and high purity copper blocks for fast heat conduction.The Omnia A200 uses a compact and powerful Class D amplifier. The maximum output power can reach 250W stereo output (@4ohm speaker) and uses integrated feedback design and error correction, achieving extremely low noise and distortion. Unique Dynamic Low Noise Switching Power Supply (DLN PS) provides excellent system-level audio performance.

1.195,00 €*
NuPrime Omnia A300-front-silver
NuPrime Omnia A300, All-in-One Verstärker
NuPrime Omnia A300, All-in-One Verstärker
NuPrime Omnia A300 All-in-One Verstärker mit 2x200 Watt, Bluetooth Apt-X HD, Airplay, div. Streamingdiensten sowie Multiroom-Fähigkeit Der NuPrime Omnia A300 ist ein voll ausgestatteter integrierter Mehrzonen-Streaming-Verstärker für Audiophile, die hochauflösende digitale Quellen aus lokalen Musikbibliotheken sowie Netzwerk-Streaming-Musik benötigen. Eine Kombination aus Hochleistungs-Class-D-Verstärker, 64-Bit-Quad-Core-Arm-Cortex-A53-Prozessor, NuPrime-eigenem SRC-Chip zur Sampleratenkonvertierung, Cirrus Logic CS43131 DAC und anderen audiophilen Komponenten ermöglicht dem Omnia A300 eine erstklassige klangliche Leistung. Er  verwendet einen kompakten und dennoch leistungsstarken Class-D-Verstärker mit einer Signalbandbreite von bis zu 100 kHz, einem fortschrittlichen integrierten Feedback-Design und einer Fehlerkorrektur für sehr geringes Rauschen und Verzerrungen. Der Cirrus Logic CS43131 kombiniert einen Audio-DAC der nächsten Generation mit geringem Stromverbrauch mit einem High-Fidelity-Kopfhörerverstärker, um eine überlegene Audio-Leistung zu erzielen. Der integrierte rauscharme Kopfhörerverstärker bietet eine proprietäre AC-Impedanzerkennung von Kopfhörern, um dem Endbenutzer unabhängig von Impedanzen oder Frequenzantworten des Kopfhörers ein konsistentes und transparentes Audioerlebnis zu bieten. Produkteigenschaften Hochleistungs-Class D Amp 64Bit Quad-Core Arm Cortex CPU Multi-Room streaming mit bis zu 8 Zonen Audio Dateiwiedergabe bis 32bit/768KHz UPNP/DLNA, AirPlay Online firmware Update OLED Display RJ45 Netzwerkbuchse Wi-Fi 2.4G Technische Daten Analog Out: RCA Analog In: RCA Digital Out: SPDIF Coax und optisch Digital In: SPDIF optisch, USB, I2S Bluetooth: apt-X HD USB: USB-B als externe Soundkarte Stromversorgung: 230VAC Abmessungen: 280x250x55mm Gewicht: 3kg

1.495,00 €*
NuPrime ST10
NuPrime ST-10, Stereo-Endstufe
NuPrime ST-10, Stereo-Endstufe
NuPrime ST-10 Stereo-Endstufe NuPrime ST-10 Stereo Endstufe mit patentierter Endstufentechnologie Diese Endstufe zeigt das Besondere Ihrer Lautsprecher. Und dazu hat Sie eine Kraft die außergewöhnlich ist und auch schwierig zu betreibende Lautsprecher fest im Griff hat. Auch hier zeigt schon das kompakte Äußere, dass hier ein besonderes Innenleben zu erwarten ist. Und zwar ein dermaßen Fortschrittliches, dass es patentiert ist !  NuPrimes Class A+D Hybrid Konzept fußt aus einer Eingangsstufe mit einem diskret aufgebauten Class A Verstärker. Dieser ist DC gekoppelt und benötigt keinerlei Koppelkondensatoren mehr. Typisch NuPrime hier am Grundsatz anzusetzen. Übliche Verstärker betonen die Qualität dieser nötigen Bauteile - NuPrime entwickelt eine Schaltung die diese schlicht überflüssig macht. Was nicht benötigt wird, kann keine Fehler machen. Danach wird die reine Leistung mittels einer digitalen hochmodulierenden Class D Endstufe erzeugt ( 600 kHz statt der üblichen max 300 kHz ). Diese wiederum wird zur Vermeidung von Jitter und Verzerrungen über ein FPGA Prozessor gesteuert . Hört sich kompliziert an ? Ist es auch und dazu noch ultramodern und nur bei NuPrime zu finden. Ihre Lautsprecher werden sich freuen ! Das ganze wird befeuert durch ein fettes starkes Netzteil mit einem Ringkerntransformator. Ungewöhnlich in einem Verstärker mit digitaler Endstufe, aber eben typisch NuPrime immer nur die beste Lösung für die Musik . Das kraftvolle Statement von NuPrime - und wer noch mehr braucht dem empfehlen wir die Mono Variante NuPrime ST-10M. The NuPrime Sound Vast soundstage Wide, lightning-fast dynamics Ultra-low distortion and noise Music emerges from a pristine background, with delicate details and nuances intact Input: 2 x RCA Output: Five-way binding posts Power Output: 150W x 2 at 8 Ohms; 150W x 2 @ 4 Ohms Gain: X 28 Input Impedance: 23.5k Ohms Sensitivity: 0.89 V to rated power THD+N: 0.01% Frequency Response: 0 Hz to 60,000 Hz S/N Ratio: 110dB at 1W, 10W, 100W Dimensions: 59 mm H x 215.4 mm W x 394 mm D Weight: 6 kg

1.650,00 €*
NuPrime ST10M
NuPrime ST-10M, Mono-Endstufe
NuPrime ST-10M, Mono-Endstufe
NuPrime ST-10M, Mono-Endstufe Mono Endstufe mit patentierter Technologie Getrennte Endstufen für links und rechts haben Ihren Charme – und im Fall von NuPrime können Sie dies auch endlich einmal unterbringen. Wer die NuPrime ST 10 Stereo kennt weiß, hier wird einiges geboten und das zu übertreffen da bedarf es einiges ! Die exzellente Schaltungstechnik der ST 10 wurde übernommen und auf die Mono Anwendung optimiert. Doch ein spezieller Schritt wurde noch im Netzteil gemacht. Eine Siebung von 30.000 uF in Kombination mit Schottky Dioden und dem kraftvollen linearen Ringkerntrafo  liefert Leistung pur auch an den schwierigsten Lautsprechern. Und für diejenigen, die neu bei NuPrime sind wiederholen wir nochmal die Kernpunkte der ST 10 Familie: NuPrimes Class A+D Hybrid Konzept der ST-10 fußt auf einer Eingangsstufe mit einem diskret aufgebauten Class A Verstärker. Dieser ist DC gekoppelt und benötigt keinerlei Koppelkondensatoren mehr. Typisch NuPrime hier am Grundsatz anzusetzen. Übliche Verstärker betonen die Qualität dieser nötigen Bauteile - NuPrime entwickelt eine Schaltung die diese schlicht überflüssig macht. Was nicht benötigt wird, kann keine Fehler machen. Danach wird die reine Leistung mittels einer digitalen hochmodulierenden Class D Endstufe erzeugt ( 600 kHz statt der üblichen max 300 kHz ). Diese wiederum wird zur Vermeidung von Jitter und Verzerrungen über ein FPGA Prozessor gesteuert. Hört sich kompliziert an ? Ist es auch und dazu noch ultramodern und nur bei NuPrime zu finden. Ihre Lautsprecher werden sich freuen ! Das ganze wird befeuert durch ein fettes starkes Netzteil mit einem Ringkerntransformator. Ungewöhnlich in einem Verstärker mit digitaler Endstufe, aber eben typisch NuPrime - immer nur die beste Lösung für die Musik. Reference class power amplifier The ST-10M Reference Class Mono Amplifier builds upon NuPrime’s fourth generation (V4) amplifier module from the ST-10 and brings it to the next level. The ST-10 was designed within the space limitation of its chassis and hence had a power system which was capable of providing 150W power output to each of the stereo channels. To really bring out the best of the V4 amplifier module, the ST-10M has a new 300W power supply for its mono channel. The entire design including the chassis has been optimized for the mono configuration, further lowering the cross channel interference. Other Circuit Enhancements The original 10A bridge rectifier has been replaced by a 50A Schottky diode, the capacitors upgraded 30,000 micro-Farad, and duly the power transformer is now rated at 300W. Improved circuit layout with careful component selection has allowed the ST-10M to have a lower noise floor than the ST-10. The NuPrime Sound The ST-10M sounds more full bodied and rich, conveys greater immediacy and power as compared to the ST-10. The improved power delivery and reduced interference gives the instruments richer overtones and more natural decay. The soundstage is deeper and creates a greater sense of space. Imaging gains more solidity over the ST-10 which already has an impressive placement. The effects of the improvements could be heard on the following examples. The striking of piano keys demonstrates greater attack and faster transients, with a sound that naturally resonates with the piano body. Brass instruments sounds glorious, characterful and carries a natural sheen but not overly bright. Female vocals and high frequencies retains the signature of the ST-10 but is smoother on the ST-10M. In an ensemble, the tonality gains an extra notch of richness which makes the overall presentation more natural. With the ST-10M, every aspect of the ST-10 sound has been improved upon, which makes it truly a reference grade amplifier ! Technical Specifications Inputs: RCA: Un-Balanced input x 1 , XLR: Balanced input x 1 Outputs: Speaker Out x 1 Power Output (rated): 230W @ 8 Ohms, 320W @ 4 Ohms Power Output (peak): 270W @ 8 Ohms, 375W @ 4 Ohms Gain: x 28 Input Impedance: 47k Ohms Sensitivity: 1.5Vrms to rated power Total Harmonic Distortion (THD): 0.01% Signal to Noise Ratio (SNR): 91dB @ 10W Frequency Response: 0Hz to 50kHz (-3dB) Standby Power Consumption: 0.9W at 115V outlet, 1.7W at 230V outlet Idle Power Consumption: 14W at 115V outlet, 14.8W at 230V outlet Worldwide AC voltage: (115 VAC / 230 VAC) with Voltage Select Switch AC Fuse: Slow-blow, 5A, 250VAC Dimension: 59 mm H x 215.4 mm W x 394 mm D Weight: 6 kg Color: Black or Silver ST-10M is a phase inverting amp. If you are certain that the +/- (usually the red/white connectors) phase of your inputs are non inverting, then you should reverse the +/- inputs for each channel on ST-10M.  All other NuPrime amps were designed as non-inverting amp.  If you have no idea what this is all about, don’t bother with making any adjustment.

1.650,00 €*
Gold Note PA-10, Class-D-Endstufe
Gold Note PA-10, Class-D-Endstufe mit einstellbarem Dämpfungsfaktor
Gold Note PA-10, Class-D-Endstufe mit einstellbarem Dämpfungsfaktor
Gold Note PA-10, Class-D-Endstufe mit einstellbarem Dämpfungsfaktor Der PA-10 ist ein neuer Endverstärkerin der Gold Note 10er Seriemit vielen innovativen Merkmalen die Gold Note Geräte von anderen abheben. Diese Endstufe wurde für  eine maximale Leistungineinem kompakten Gehäuse ausgelegt. Sie ist die ideale Ergänzung zum DA-Wandler/StreamerDS-10. Zusammen bilden beide ein vollständiges High-End System mit praktischen kleinen Abmessungen ohne Abstriche bei der Leistung und der von Gold Note gewohnten Klangqualität. Made in Italy PA-10 ist einvoll symmetrisch aufgebauter Endverstärkermit einem speziell für Gold Note in Italien entwickelten und gebautem Verstärkermodul.Die BTL Betriebsweise (Bridge Tied Load) erlaubt die Brückenschaltung beider Kanäle mit 2x75W an 8Ohm zu einer Mono-Endstufemitdoppelter Ausgangsleistung. Beachtliche 600W Impulsleistung sind im Monobetrieb an einer 4Ohm Lasterreichbar. Ein stabiles Stahlchassis und massive Aluminium-Anbauteile bilden eingegen Einstreuungen gut abgeschirmtes Gehäuse. Das äußere Erscheinungsbild im klassischen italienischen Design passt zu den anderen Erzeugnissen der Gold Note Serie 10. Wie unser Spitzenmodell PA-1175 hat auch der PA-10 einen einstellbaren Dämpfungsfaktor für die ideale Anpassung unterschiedlicher Lautsprecher. Sowohl Großlautsprecher mit problematischem Impedanzverlauf als auch wirkungsgradstarke Boxen und Mini-Monitore können einwandfrei angepasst werden. Die hauseigene Gold Note-Link Technik erlaubt das Ein und Ausschalten der PA-10 mit Hilfe anderer Gold Note Komponenten wieden DS-10 oder einer zweiten Endstufe PA-10. Technische Daten Ausgangsleistung: 2 x 75W @ 8Ω Stereo load
, 2 x 150W @ 4Ω Stereo load
, 2 x 300W @ 2Ω Stereo load
, 1 x 300W @ 8Ω Mono (BTL) load
, 1 x 600W @ 4Ω Mono (BTL) load Frequenzgang: 10Hz-30kHz at +/-1dB THD:0,05% Dämpfungsfaktor: Einstellbar Eingänge: Stereo RCA und stereo XLR balanced Eingangsempfindlichkeit: 1,4V RMS on RCA, 1,4V RMS on XLR Eingangsimpedanz: 13KΩ RCA, 13KΩ XLR Ausgänge: Vergoldete Lautsprecherklemmen English Information Small But Powerfull The PA-10 is the new Power Amplifier of the Gold Note series 10 featuring a lot of innovations which have always distinguished Gold Note’s designs. PA-10 has been developed to offer great power considering its small size. The product is designed as the perfect companion of the DS-10 4in1 DAC completing a conveniently sized High-End System without renouncing to the power and Gold Note sound quality. Top-level electronic components combined with outer connections RCA, XLR and gold plated speaker terminals complete the high-level build quality of the product. PA- 10 is built around a very solid steel chassis completed by massive panels of aluminum to avoid RFI and EMI. The aesthetic of the chassis is derived from the other series 10 products integrating the PA-10 seamlessly into a coherent concept that is inspired by the Italian design tradition. Bridge-Tied-Load The PA-10 is a fully balanced amplifier featuring a BTL design (Bridge-Tied-Load) which allows the unit to be easily bridged and work as a mono amplifier doubling its power rate from 75Watt per channel @ 8Ω to a considerable 600Watt @ 4Ω load. Using two PA-10 will increase the performance of your stereo system noticeably. The existing flexibility of the stereo power amplifier could even be largely extended with the mono application for all kind of speakers that require really high power and great energy. Selectable Damping Factor Like the flagship model PA-1175 MKII, PA-10 features a unique adjustable Damping Factor design allowing for an ideal matching with any kind of loudspeakers: PA-10 can drive either large and difficult speakers or high sensitivity and mini-monitor speakers. GN LINK The proprietary GN LINK technology allows putting the PA-10 into Master-Slave-Mode with other sources like the DS-10 or a second PA-10. When connected via the GN Link cable, the unit will go in standby mode and will re-activate itself only when receiving a signal from the master unit. The GN Link-Function guarantees major user-friendliness since you will be switching ON/OFF the entire audio chain from one source only.

1.790,00 €*
NuPrime_AMG_STA-side-front-2
NuPrime AMG STA, Endverstärker
NuPrime AMG STA, Endverstärker
NuPrime AMG STA Endverstärker Der AMG STA umfasst mehrere Innovationen aus dem Spektrum des Power-Amp-Designs. Zu den klassenführenden Eigenschaften gehören 1M Ohm-Eingangsimpedanz, hoher Momentanstrom für die Stromversorgung, 700kHz-Schaltfrequenz und Single-Ended Non-Negative Class A-Modul gekoppelt mit Double Feedback Class D-Modul für 300W Mono-Amp-Leistung. Die Frontplatte der AMG-Serie verkörpert optisch den Spirit diese Serie. Sie wird aus einer 15mm gehärteten Luft- und Raumfahrt-Aluminiumlegierung mit einer vierachsigen CNC-Maschine mit einem Diamantschneider in einem 48-stufigen Prozess gefräst. Designelemente wie das 3D-"Floating"-Logo, die gekrümmte Oberfläche um den Frontpanel-Schalter und die diamantgeschnittene Kante bringen die Qualität von Ultra-High-End-Audioprodukten in das erschwingliche Sortiment der AMG-Serie. Die im AMG STA integriert Gehäuseabschirmung isoliert das Innenleben von externen Interferenzen. Die 300 Mhz Bandbreite JFET bietet eine ultrahohe Eingangsimpedanz. Die Dynamik des Schaltungsdesigns und der single-ended- Class A Schaltung bereichert die natürliche zweite Harmonische. Dieses Schaltungsdesign ermöglicht es, die empfindlichsten Details des Audiosignal unverfälscht durch die einzelnen Stufen zu tragen. Das Maß an Transparenz ermöglicht detaillierte Klangbilder, die in dieser Preis- und Leistungsklasse hervor stechen. Im Netzteil kommt ein 380 W Transformator zum Einsatz, dessen Spitzenleistung 30% über der von herkömmlichen Transformatoren liegt. Außerdem reduziert der Hochfrequenz-Wechselstromfilter 3. Ordnung externes Rauschen. Listening Impression With improvements to every area, the bar has been raised for what is achievable with audio performance in small form factor. The AMG STA has a flavor of its own, so it is hard to compare it with the Evolution One, which derives some of its design from or the similarly priced ST-10. AMG STA sounded smooth and relaxing. Detail, resolution, dynamics, and speed are in the ST-10 ballpark, yet the sound is quite different. Drawing comparison with the Evolution One, they shared a trait of ease in reproducing the details of the recording comes afore. However, AMG STA does things differently. While the Evolution One has that inviting warmth, the AMG STA wants to allure the listener. Hence, instead of glitz and glamor, which pulls you in quickly into the performance, the AMG STA has a demeanor that slowly brings you into the music. Tonal qualities of the AMG STA leans toward being full and rich, so instruments and vocals seem to gain extra body, weight, and harmonic richness. It may not be the most accurate reproduction but does make Jazz and Vocal pieces highly addictive. It may take away the raw edge of Rock and Electronic music and sounds less exciting for some. The sound stage has an attractive characteristic. A linear presentation is like having floodlights shining on all the performers such that everyone can be seen equally well. The AMG STA, however, has more of a spotlighting effect, where performers are focused on getting your attention. It is tough to put the sound of the AMG STA into measurable attributes as the presentation is quite different from the other series. You’ll need to try it and hear for yourself. Technische Daten Stereo Power: 2 X 130W @ 8 Ohm & 2 X 200W @ 4 Ohm Mono Power: 300W @ 8 Ohm & 320W  @ 4 Ohm Rated / Peak Current: 10A / 15A Gain : 26 (stereo) & 52 (mono) Signal to Noise Ratio : 100 dB @ 10W THD+N : 0.006 Frequency Response : 10Hz~50K Hz +-0.2dB @ 8 Ohm.  58K Hz @ -3dB Input Impedance: 1M Ohm Sensitivity: 1.2 Vrms @ Stereo; 0.95 Vrms @ Mono Dimensions: 235 mm W x 285 mm D x 55 mm H (including feet) Weight: 4 Kg

1.850,00 €*
NuPrime IDA-16
NuPrime IDA-16, Class A-D-Vollverstärker mit DSD-DA-Wandler, A&V-Tip !
NuPrime IDA-16, Class A-D-Vollverstärker mit DSD-DA-Wandler, A&V-Tip !
NuPrime IDA-16 Starting with complete integration of all necessary stages within one chassis, the design inherently ensures the shortest possible signal path, which thereby results in vanishing levels of noise and distortion to create a jet-black backdrop upon which your recordings literally unfold before your ears. Such deafening silence is further augmented by the IDA-16’s innovative volume control; a feature based upon advanced, thin-film switched-resistor technology that places only a single resistor in the signal path at any volume setting. Volume adjustment is conveniently achieved in 99 precise, 0.5dB increments and is further complimented by providing individually adjustable volume for each input. Precise level matching of your various sources becomes a breeze and makes comparison between them equally so. The NuPrime amp circuit improves on the class-D amp by using a “self-oscillating circuit to generate pulse width modulation.” The amplifier switches on and off at a frequency of 600kHz, well beyond the 44.1kHz sampling rate of CD. Most class-D amps switch at 300kHz or lower. Completing the ensemble is NuPrime’s proprietary variable frequency Switch-Mode Power Supply (SMPS) technology. For thundering, authoritative bass performance, the IDA-16’s innovative supply and its Cross-Matrix Array (CMA) capacitor bank are capable – upon demand – of delivering extremely high current to the amplifier’s output stages. The result is unprecedented transient speed and an almost shocking level of dynamic impact that renders percussive instruments as though they were suddenly attacking outward from beyond the blackest depths of a phantom stage. Such highly responsive behavior achieves extremely low Total Harmonic Distortion + Noise (THD+N) levels of less than 0.004% while attaining a maximum system efficiency of up to 93%. Adding the IDA-16’s stratospheric frequency response up to 80 kHz, and now mere vocals are transformed nigh unto emotional experiences while the upper registers of instruments become the shimmering highlights of a live performance. In all, its crystalline transparency, holographic imaging and fatigue-free sound will allow you to finally relax and experience the music as it was meant to be… while almost forgetting the IDA-16 is even there. Although, when the music stops and the lights are on you definitely won’t forget. Rather, you’ll be quite proud to showcase the IDA-16 in a place of prominence within your room as its sleek, low profile chassis and understated elegance are sure to draw the attention of your most discriminating guests. Whether your preference is Black or Silver finish, the IDA-16’s simple, modern style is certain to find broad approval as it politely augments any decor. As you continue to review below, you will see that the IDA-16’s many innovative features and exemplary specifications are truly impressive and have few equals. More importantly though, just one listen and you are certain to discover the IDA-16 to be a true hallmark of audio performance by elevating music playback and visual style to a level seldom experienced at any price. Features: Full microprocessor control with memory retention Five digital inputs & one stereo input for complete system flexibility Supports DSD native playback by ASIO2.1 (up to 11.2MHz) and DoP (up to 5.6MHz) method Theater-Mode pass-through (fixed volume control) function Ultra low noise JFETs employed in input stage for the lowest possible noise performance Volume adjustment in 99 precise, 0.5dB increments Advanced, thin-film switched-resistor ladder network for controlling volume – only a single resistor in the signal path at any volume setting Individually adjustable volume on each input for precise level matching of all sources High-standard parts: USB (DSD): XMOS DAC: ESS9018 and OPA2134 for high-quality sound. Cross-Matrix Array (CMA) capacitor module Exclusive driver software for Windows Standard driver software for Mac Asynchronous transfer mode Very Low Power Consumption on Standby Mode Available in stylish black or silver anodized aluminum finish Included remote control for full convenience Technische Daten Inputs: 1 x  USB Digital 2 x Coaxial Digital S/PDIF 2 x Optical Digital S/PDIF 1 x Analog Stereo RCA Outputs: 1 x Optical (up to 24 bit/192 kHz) 1 x Stereo RCA (Line out) 1 x Stereo Speaker (Binding Posts) Output USB Sampling Rates: 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz, 352.8KHz, 384KHz and DSD 2.8MHz, 5.6MHz, 11.2MHz S/PDIF Sampling Rates: 44.1KHz, 48KHz, 88.2KHz, 96, 176.4KHz, 192KHz Maximum Sampling Rate: 24-bits Bit Resolution: 16-24-bits Power output: 200W x 2 @ 8 Ohms; 200W x 2 @ 4 Ohms THD+N: 0.004% Peak Output Power: 400W Frequency Response: 10Hz to 80kHz RS232 extension: Smart Home Control & Firmware upgrade Dimensions: 17 in W x 15 in D x 1.97 in H (2.56 in H include feet) Weight: 16 lbs. Worldwide AC voltage: (90VAC~130VAC // 210VAC~ 250VAC) With Voltage Select Switch AC Fuse: Slow-blow,7A, 250VAC

2.495,00 €*
NuPrime Evolution One
NuPrime Evolution One, Class-D Mono-Endstufe, A&V Highlight !
NuPrime Evolution One, Class-D Mono-Endstufe, A&V Highlight !
NuPrime Evolution One, ultrakräftige Class-D Monoendstufen "Die Dinger mußt Du dir unbedingt anhören, die sind der Wahnsinn", hat er gesagt. (Der böse Chef vom deutschen NuPrime Vertrieb...)"Naja, Class-D-Monos für 8000.- Euro das Paar, wem soll ich denn das verkaufen ?" (Hab ich mir gedacht...)Aber da mich der neue NuPrime EVO DAC extrem positiv beeindruckt hat, hab ich mir die Amps mal zum Test schicken lassen.Class-D-Verstärker in dieser Preisregion habe ich bisher nicht wrklich ernst genommen, daher hielt sich meine Neugier in Grenzen.Die Kartons standen hier dann erst mal einige Tage herum.Mein schlechtes Gewissen hat mich dann doch eines Abends dazu gewungen, die Testamps auszupacken und an die Opera Grand Callas und den Auralic Streamer anzuklemmen. (Meine Erwartungen waren eher gedämpft...) Ja, und dann ?Alle Vorurteile pulverisirierten sich in Sekunden.Bereits im kalten Zustand spielten die NuPrimes so harmonisch, echt und räumlich, dass ich für ca. 2 Stunden am Sessel klebengeblieben bin.Die heftige Dynamik und Basskontrolle hatte ich ja angesichts der Leistungsdaten erwartet, aber dieses harmonische, fast röhrenartige, detailreiche Klangbild hätte ich einer Class-D-Endstufe nie zugetraut.Das kannte ich bisher tatsächlich nur von üppigen, röhrengetrieben Systemen mit großen Hornlautsprechern.Dazu stromsparende und wartungsfreie "Ökotechnik" mit sehr kompakten Abmessungen.Ein ganz großer Wurf !Ein dickes Lob an die Ingieneure von NuPrime !Der Tip schlechthin für alle Dynamikfans und Freunde harmonischer Musikwiedergabe.(Ganz heiß für Lautsprecher mit Diamant, Beryllium, Metall oder Folienhochtöner, die etwas leistungshungriger sind). English Information NuPrime Evolution One  came from the evolution of esteemed NuForces award-winning Reference amps, after NuPrime has acquired the NuForce high end product line. While the Reference 20 retains all of the Reference 18s superior sonic attributes, the amps higher 420W @ 4 Ohm output power brings one closer yet to the goal of supreme performance. The Ref 20s low-ESR Cross Matrix Array (CMA) capacitor assembly features high-performance capacitors in a proprietary, non-resonant alignment. Unifying such refined technology with superior power yields truly unsurpassed speed, transparency and resolution, along with genuinely authoritative dynamics. The net response is a natural, non-fatiguing rendition of music that simply flows from a palpably real soundstage. The Evolution One is the embodiment of all the latest and best technology NuPrime has developed. From the power supply, amplifier circuitry, to a new highly advanced input stage; the Evolution One has been carefully crafted to achieve a performance that surpasses the Reference range performance in all areas. With the Evolution One, NuPrime has made several design advancements: A new input stage with a 1MΩ input impedance. The high input impedance allows the pre-amplifier to see a much easier load and hence introduces less harmonic distortion and phase delay to the system. Latest NuPrime 700KHz high-speed switching Class-D module allows greater resolution to be achieved. High-speed computing simulations were performed for the Evolution One design, in order to achieve the highest input impedance and the lowest phase delay. The power supply has been enhanced to deliver cleaner and more stable power with lower noise floor. High Quality copper strips instead of usual cables are used to connect the power supply to the amplifier’s circuitry, maximizing power delivery. The NuPrime Sound The Evolution One outperforms its predecessor in every aspect which NuPrime amplifiers are known for by having: Wider and deeper soundstage Faster dynamics with greater range Lower distortion and noise Cleaner background that provides greater detail and nuances Our new generation of amplifiers have moved even further away from the cold, hard, flat and harsh sound typically associated with Class-D amplification. The Evolution One has Class-A like warmth and naturalness that no other competing Class-D amplifier can recreate. In addition, the Evolution One is able to create an enveloping ambience that reaches out and invites the listener to the music. All these pushes the performance of the Evolution One to yet a higher level! Very few manufacturers could design a 1MΩ input impedance without adversely affecting noise and stability, and those amplifiers are priced many times higher. The Evolution One is the first Class D amplifier to successfully implement a 1MΩ input impedance and the only one in its price range of any type of amplifiers. Many good audio equipment though can present a deep soundstage, clarity gets lost at the depths as they become susceptible to interference. The Evolution One has a very deep soundstage, and can present a clear image even at the greatest depth. With large scale orchestral recordings, you will be able to have a clear image of the last rows of percussion and wind, even the subtle pedal sounds! Such details are presented in a truthful manner without artificial enhancements. Class-D amplifiers from most manufacturers sound cold and clinical, excelling primarily in their power efficiency and high power output. With the Evolution One, NuPrime has achieved a Class-A like sound with our hybrid Class-D technology that retains the merits of both Class-A and Class-D amplification. Through our efforts in research and development, the Evolution One could easily compete with the best Class-A amplifiers in the market, without the bulk and heat generation. The Evolution One presents the most untainted and transparent sound with a completely flawless background. Recordings comes through as they are meant to be, as if you are right there at the performance. Be surprised by the revelation the Evolution One will bring to your music! Technical Specifications Power Output (rated) : 240W @ 8 Ohms, 330W @ 4 Ohms Power Output (peak) : 285W @ 8 Ohms, 390W @ 4 Ohms Gain: x 28 Max output current 25A Sensitivity (to rated power) : 1.5Vrms Input Impedance : 1M Ohms Total Harmonic Distortion (THD) : 0.01% Frequency Response : 0Hz to 50kHz (-3dB) Signal to Noise Ratio (SNR) : 91dB @ 10W Standby Power : 1.6W @ 115V outlet, 1.7W @ 230V outlet Idle Power : 17.4W @ 115V outlet, 18.7W @ 230V outlet Worldwide AC voltage : (115VAC / 230VAC) with Voltage Select Switch AC Fuse: Slow blow, 5A, 250VAC Color: Black or Silver

3.995,00 €*
NuPrime-Evolution-STA_black-front
NuPrime Evolution STA, Stereo-Endstufe
NuPrime Evolution STA, Stereo-Endstufe
NuPrime Evolution STA, Stereo-Endstufe Die NuPrime Evolution STA , entstand aus den preisgekrönten Evolution ONE Mono Endstufen.Sie stellen einen Durchbruch in der Verzerrungsreduzierung dar. NuPrime nennt es „Only Distortion Cancellation“ (ODC) und hat damit die hochmoderne Klasse-D in den letzten zehn Jahren weiterentwickelt.Ein typisches Feedback-Fehlerkorrekturdesign invertiert das Ausgangssignal zur Summierung mit dem ursprünglichen Eingangssignal, um das negative Fehlersignal abzuleiten, das zum nächsten Zyklus des Eingangssignals addiert wird, um ein genaueres Ausgangssignal zu bilden. Das ODC-Class-D-Design von Nuprime leitet das Fehlersignal direkt von den MOSFETs und der Ausgangsfilterschaltung ab, wodurch das negative Rückkopplungssignal erheblich reduziert wird, was zu einer erheblichen Reduzierung der Verzerrung THD+N von 0,002 % bei 1 kHz (5 W) und weniger als führte 0,005 % THD+N bei 1 KHZ (2W-100W). Diese bahnbrechende Verbesserung des Class-D-Designs führte zu einer natürlichen und reinen Klangcharakteristik. Technische Daten (Englisch) Power Output (RMS): 230W @ 8 Ohms , 310W @ 4 Ohms Power Output (peak): 270W @ 8 Ohms , 360W @ 4 Ohms Gain: x21 Sensitivity (to rated power): 2Vrms Input Impedance: 47K Ohms EVO STA WATT / THD / S/N (typical) : @5W (0.0025% ,95db) , @50W (0.007% , 105db) , @100W (0.01% , 110db) Frequency Response: 10Hz to 50kHz (-3dB) Trigger IN and OUT Standby Power : 1.5W @ 115V outlet, 1.7W @ 230V outlet Idle Power : 24W @ 115V outlet, 26W @ 230V outlet Worldwide AC voltage: (115VAC / 230VAC) with Voltage Select Switch AC Fuse : Slow blow , 7A , 250VAC Dimension : 430mm x 372mm x 66.5mm Weight : 10.5Kg Package Dimension: 642mm x 594mm x 254mm Package Weight : 14Kg Color : Black or Silver

4.995,00 €*
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