Feature Highlights

• Amplifier capable of 2 x 150W @ 8 ohms and 2 x 200W @ 4 ohms power
• Wi-Fi 24-bit/192kHz and Bluetooth 5.0 aptX HD streaming
• Multiple digital and analog inputs, with up to IIS 32-bit/768kHz, USB 24-bit/384kHz, and DSD256 decoding
• Coaxial, Optical and analog Pre-Out
• Supports all major online streaming services (Amazon Music, Deezer, iHeartRadio, Qobuz, QQ Music, Spotify, TIDAL, TuneIn, Napster, Ximalaya) and network DLNA

* AirPlay and AirPlay2 are not supported. This is the only difference between A300 and A300SE.
** Mobile devices can stream Bluetooth music to Omnia A300, 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).

Streaming Hi-Res

• Supported "CD Quality" Streaming Services: Tidal HiFi
• Supported Hi-Res Streaming Services: Qobuz Hi-Res
• Deezer HiFi is not supported
• Under development: Amazon HD, Tidal Master

Technical Highlights

A combination of high-power Class-D amplifier, 64-bit quad-core Arm Cortex-A53 processor, NuPrime proprietary SRC chip, Cirrus Logic CS43131 DAC, plus other audiophile-grade components enable the Omnia A300 to achieve world class performance above its peers.

                     Amlogic A113X                                             Audiophile-grade                                       Bluetooth Wireless HD
64-bit quad-core Arm Cortex-A53 processor                      components &                                     Qualcomm aptX HD supports
for high resolution wireless streaming                                 noise filter                                    24-bit music quality over Bluetooth

The Omnia A300 utilizes a compact yet powerful Class-D amplifier capable of signal bandwidth up to 100kHz with advanced integrated feedback design and error correction for very low noise and distortion. The Cirrus Logic CS43131 combines a next-generation, low power audio DAC with a high-fidelity headphone amplifier to provide a superior system-level audio performance. The onboard low noise, ground-centered headphone amplifier provides proprietary AC impedance detection to support headphone fingerprinting to provide a consistent and transparent audio experience for the end user regardless of transducer impedances or frequency responses.

SPECIFICATIONS

Amplifier

• Power: 150W @ 8 ohms; 200W @ 4 ohms (both channels driven)
• THD:
  • <0.02% (AUX IN, 1W, @ 8 & 4 ohms)
  • <0.01% (OPT IN, 1W, @ 8 & 4 ohms)
• Signal-to-Noise Ratio: >95 dB (Digital input, 10W out @ 8 ohms)
• Clipping Power: >230W (1kHz @ 4 ohms, both channels driven)
• Frequency Response: +0.6 dB/-1dB (12 Hz – 22 kHz)
• Channel Separation: >85dB (1 kHz AUX); >105 dB (10 kHz Digital)
• Input Sensitivity:
  • 0.85V (AUX & OPT) for 100W @ 8 ohms
  • 0.75V (AUX & OPT) for 100W @ 4 ohms
• Standby Power: <0.5W

DAC & Wireless

• Bit Depths: 16-32 bit
• Streaming Audio Processing Engine: up to 192KHz / 24-bit
• IIS/DSD HDMI Input: PCM up to 768KHz/32Bit and DSD up to DSD256
• USB PCM/DSD Input: PCM up to 384kHz/32Bit and DSD up to DSD256
• Optical S/PDIF Input: PCM up to 192KHz and supporting DoP format DSD64
• Optical, Coaxial and analog Pre-Out
• MQA*
• Bluetooth: Receiving only**
• Network Connectivity: Gigabit Ethernet RJ45, 802.11 b/g/n Wi-Fi
• Streaming Services: Amazon Music, Deezer, iHeartRadio, Qobuz, QQ Music, Spotify, TIDAL, TuneIn, Napster, Ximalaya

** Mobile devices can stream Bluetooth music to Omnia A300, but it can not stream to Bluetooth earphones.

Dimension and Weight

• Product Dimensions (W x H x D): 280 x 55 x 250 mm (includes feet and extended rear panel terminals)
• Product Weight: 3 kg (6.6 lbs.)
• Package Dimensions (W x H x D): 440 x 100 x 340 mm
• Shipping Weight: 5 kg (11 lbs.)

MQA might be available at a later date through over-the-air firmware update.
Airplay 2 when available, would require additional hardware upgrade cost.

All specs are measured according to IHF 202 CEA 490-AR-2008 standard. THD is measured using AP AUX 0025 passive filter and AES 17 active filter.

The Omnia A300 is the first streaming integrated amplifier from NuPrime. There are bound to be comparisons with the other integrated offerings like the IDA-8 or the IDA-16. To say that it sits between the IDA-8’s slightly warm nature and the IDA-16’s neutral and large sound is probably insufficient to describe the A300’s sound signature.

Firstly, to listen to the A300 on its own without comparison, one may wonder where the A300 excels. All the desirable sonic attributes such as detail retrieval, tonal accuracy, and imaging are all up to the usual NuPrime standards. Yet, it doesn’t have the unique sound characteristics of the IDA-8 or the IDA-16 that one would immediately notice and relate to. The overall presentation is of an even tonal balance, calm and collected, to avoid edginess.
So while the other amps will likely make an impression of how they sound and provide a picture of what music genres they favor or matching equipment, the A300 aims to accommodate a wide range of equipment and genres. Not forgetting that this is a streaming amplifier that most people would use the A300 to stream music from their servers or online streaming services, the slightly safe approach would make sense for such a product. And this is only true when the A300 is set to the FLAT EQ with the 8R output setting.

The A300 comes with two output settings for the power amplifier matching with higher or lower impedance speakers. While one could easily follow the speaker’s nominal impedance rating to set the output, the abundance power output means that the 8R setting would have no problems driving a number or lower impedance speakers as well. And this is where you can begin to tailor the A300’s sound. The 4R setting increases the speed and dynamics, making for a more exciting listen, and some users would prefer this sound over the calmer and slightly more accurate sounding 8R setting.

The various EQ presets also allows users to add some flavor to the A300’s sound without sacrificing its detailed and composed nature. While the FLAT setting works quite well for online streaming services, many would favor the Loudness EQ with higher bit-rate and less compressed material. This setting brings about fullness in the sound, which makes the soundstage somewhat wider and deeper. Though other EQ settings may be associated with musical genres, it is entirely worth experimenting with optimal system matching in different setups.

Finally, before assessing the A300, the amp requires quite a fair bit of running-in like other NuPrime amplifiers. At least 50 hours is recommended for the sound to open up and gain an extra degree of tonal richness.

NuPrime proprietary EQ settings allow the users to customize their listening experience according to music preferences and audio equipment matching. Loudness 1,2 & 3 settings came from the R&D effort of the AMG series. Despite its name, Loudness settings create a presence of warmth and impact for the listener instead of louder sound.
Repeatedly pressing the Loudness button will cycle through the following EQ settings:
Flat, Loudness 1, Loudness 2, Loudness 3, Rock, Jazz, Pop, Classic

Loudness1

Loudness2

Loudness3

Omnia A300 Manual

USB Driver

Alita, DAC-8, DAC-9SE, Hi-mDAC, Omnia A300/A300SE,
IDA-8 (black serial # >= 4002796, silver serial # >= 3002109, see below for other serial numbers)

NuPrime Audio_setup_WHQL_20221103.exe

All others (Evolution DAC-2, Evolution DAC, DAC-10*, DAC-9X, DAC-9, IDA-16, IDA-8, AMG DAC, etc)

NuPrime_UsbAudio_v5.57.0_2023-03-20_setup.exe

This driver supports Signed Driver Enforcement and the following Operating systems:
Windows 11 (32-bit and 64-bit), Windows 10 (32-bit and 64-bit)

Note:
Windows XP, Windows 8, Windows 7 are no longer supported.

Omnia Receiver

Install NuPrime Omnia Receiver from Google Play Store or Apple Store

-> Omnia Receiver app User Guide

What is Linkplay ?

Linkplay provides the module that manages the streaming protocol, communications between devices, and data routing in re-streaming and multi-room configurations. Products that use the LinkPlay module can have significant feature and performance differences as LinkPlay is a communication level module. In general, products that are LinkPlay compatible can be used together as a system. A partial list of LinkPlay compatible products are listed here: https://www.linkplay.com/products-powered-by-linkplay

Nuprime customers can mix and match products to maximize performance (with only Nuprime components) or convenience (Nuprime streamer with compatible speakers).

NuPrime streaming devices application firmware can be updated over-the-air through the Omnia Receiver App.

Over-The-Air Update

• Go to the setting for your device

• Select the "NEW" firmware and a dialog box will pop up. Select Upgrade.

The latest Android app version is 3.1.11.220928.962192
The latest iOS app version is 2.8.11328

*** this version added support for gapless playback.

Manual System Firmware Update

Device System Firmware Update Instructions

• If you are updating streaming integrated amp such as A300, disconnect it from the speakers.
• Download and install updateTool v1.18 (updateTool.exe) on a PC running Windows 10.
• Locate the IP address of A300 on your network using Omnia Receiver App (the following App images use WR1 as an example):

• Enter the A300's IP address in updateTool.
• Download and Unzip the relevant firmware files onto your PC and provide the file path for updateTool to install.

NuPrime Omnia A300 firmware files:

• Select Update when prompted by updateTool
• The update will progress until 99%,  and then restart Omnia A300.

Firmware version: 4.6.334960.54