Nuprime AMG DAC & Preamp

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  • Regular price $2,925.00

High-End DAC & Preamp with Analog Stereo Input

The AMG DAC uses dual ESS DACs with discrete Class-A transistors for natural, detailed, and expansive sound stage sound characteristics. With five digital including IIS/DSD and one analog stereo input, RCA stereo, and XLR balanced outputs, and decoding capability of PCM 384K, DSD256, the NuPrime AMG-DAC is a reference-class DAC designed for studio professionals and high-end audiophiles.


In a modern high-end DAC, the preamp stage plays a prominent role in determining the sound quality and characteristics. AMG DAC preamp features the following designs that gives it a natural, relaxed and analog sound:

  • Output stage voltage amplification employing all discrete components.
  • Output stage current amplification utilizing a high-speed amplifier design.
  • “Current transmitter” has no negative feedback amplifier.

The Heart

As the heart of an audio system, the AMG-DAC supports an extensive number of inputs and formats. Dual ESS Technology 32-bit audio DAC ESS9038Q2M independently decode left and right channels improve channel separation and reducing overall noise. The Vishay professional film MELF resistors provide excellent sound quality.

Other notable features:

  • Muses 72320 volume control.
  • NuPrime SRC IC chip (co-developed with IC vendor) provides DSP processing where Input signals are up-sampled to megahertz before down converted to the targeted sampling rate with ultra-low jitter and distortion.
  • Extension port for Bluetooth receiver and WiFi audio streamer (optional).
  • Full microprocessor control with memory retention.
  • Supports DSD native playback by ASIO2.1 and DoP method.
  • Ultra- low-noise JFETs in the input stage for the lowest possible noise floor.
  • Individually adjustable volume on each input for precise level matching of sources.
  • Asynchronous transfer mode.

Using Bluetooth and WiFi Audio Receivers and Dongles

NuPrime defined an USB Type-A port to carry S/PDIF data and 5V power for connecting to external wireless audio receiver using just one standard USB cable.

The NuPrime Omnia WR-1, BTR-HD, Stream Mini and Stream Mini DAC wireless receivers have a micro USB port that is compatible this specification. This allow a standard off-the-shelf USB-A to micro USB cable to be used for power for the receiver as well as wireless audio data transfer in S/PDIF format.



  • C1: Coaxial input for CD/DVD/BD players, TV and any device with a coaxial source.
  • O2: Optical input for CD/DVD/BD players, TV and any device with an optical source.
  • U3: USB input for computer (PC/MAC) and for NAS devices.
  • E4: Extension port for Bluetooth or WIFI. (Optional)
  • A5: Stereo analog for CD/DVD/BD players, TV and any analog source device.
  • HE: IIS/DSD Digital input With HDMI cable to transfer IIS and DSD data from NuPrime source devices. Do not connect to the HDMI output of Set Top Box or BD / DVD player.

Note: AMG-DAC does not guarantee that all NAS devices will operate and be compatible due to wide variety of brands and custom specs.


  • 1 x Balance XLR Out
  • 1 x Stereo RCA Out
  • 1 x TRIGGER out
  • RCA unbalanced outputs: 2 Vrms
  • XLR balanced outputs: 4 Vrms
  • High Low Gain = X2
  • Frequency Response: 20 Hz – 20 KHz / ±0.3 dB
  • S/N ratio > 110 dB
  • THD+N: < 0.05%
  • Dimensions: (W x H x D): 235 mm x 55 mm x 300 mm
  • Weight: 5.5 pounds (2.5 kg)
  • Worldwide AC Voltage: 90VAC~130VAC / 210VAC~ 250VAC with Voltage Select Switch
  • AC Fuse: Slow-blow, T2.5A, 250VAC

I2S Pin Definition

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