HDMI ARC amplifier

Onoorus D3 Pro – Technical Specifications

• Flagship AKM AK4493S DAC supports PCM 768kHz and DSD512 native hardware decoding.
• TI TPA3255 PFFB amplifier delivers 2×300W@4Ω output with high efficiency and low distortion.
• XMOS XU316 USB interface ensures ultra-low latency asynchronous digital audio transmission.
• Qualcomm QCC3084 Bluetooth 5.4 chip supports aptX Lossless, LDAC, LC3 high-definition audio.
• NJW1194 electronic volume control enables ±10dB bass and treble tone adjustment.
• USB input: Type-B for PC/mobile decoding and Type-A for USB flash drive direct playback.
• HDMI ARC input supports TV audio return channel with high-resolution signal compatibility.
• Optical and coaxial SPDIF inputs support up to 24bit/192kHz digital audio.
• RCA port functions as both analog input and output (multiplexed).
• Bluetooth 5.4 wireless input with <50ms latency and high-fidelity transmission.
• Stereo main output delivers 20Hz–20kHz full-band high-resolution audio.
• Dedicated subwoofer output with adjustable crossover from 40Hz to 200Hz.
• RCA port switches to pre-out mode when not used as input (shared source mode).
• D-F Mode: DAC output bypasses tone control for fixed-level digital signal.
• D-B Mode: DAC output passes through NJW1194 for tone-adjustable digital signal.
• A-F Mode: Amplified output bypasses tone control for fixed-level signal.
• A-B Mode: Amplified output passes through NJW1194 for tone-adjustable playback.
• Integrated amplifier and DAC design optimized for desktop or hi-fi audio systems.