NuPrime Omnia A300SE
NuPrime class D streaming integrated amplifier, with built-in DAC, Wi-Fi, Bluetooth aptX HD and AirPlay 2, to drive a compact system without additional electronics.
Description
The NuPrime Omnia A300SE is a multi-room streaming integrated amplifier, designed to combine the digital source and power stage in a single unit. It features full audio decoding and wireless connections, allowing it to replace both a traditional amplifier and a network player.
Its output of 2 x 200 W into 4 ohms allows it to drive current-hungry speakers without the need for an external amplifier. The harmonic distortion rate stays below 0.01% via the optical input and below 0.02% via RCA, a level that preserves signal finesse right through to the output stages. The frequency response spans 12 Hz to 22 kHz and the signal-to-noise ratio reaches 95 dB, two figures that ensure a clean sound floor even at low volume. Digital decoding goes up to PCM 32-bit/768 kHz and DSD256 via the HDMI i2s input, up to PCM 24-bit/384 kHz and DSD256 via USB-B, and up to PCM 24-bit/192 kHz and DSD64 via optical, covering nearly all current hi-res formats. The Cirrus Logic CS43131 DAC and quad-core Arm Cortex-A53 processor handle signal processing and network stream management.
This amplifier is aimed at users wishing to simplify their stereo system by centralising streaming and amplification in a compact unit measuring 280 x 55 x 250 mm and weighing 3 kg. It suits both everyday listening via Wi-Fi or Bluetooth aptX HD and more demanding use thanks to its high-resolution digital inputs.
Technical specifications
| Power | 2 x 200 W (4 ohms) |
| THD | < 0.01% (optical), < 0.02% (RCA) |
| Signal to noise ratio | 95 dB |
| Frequency response | 12 Hz - 22 kHz |
| HDMI i2s | PCM up to 32-bit / 768 kHz and DSD256 |
| USB B | PCM up to 24-bit / 384 kHz and DSD256 |
| Optical | PCM up to 24-bit / 192 kHz and DSD64 |
| Dimensions (W x H x D) | 280 x 55 x 250 mm |
| Weight | 3 kg |
What to check before buying used
With this type of integrated streaming amplifier, attention should focus mainly on the onboard electronics: check that the Wi-Fi module and Bluetooth connect without dropouts, that all digital inputs (HDMI i2s, USB-B, optical) are correctly recognised, and that firmware updates have been applied normally. It is also advisable to test the output on both channels to rule out any fault in a class D output stage.
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