Reference
Digital to Analog Audio Decoder with Dolby Digital & DTS
Decode S/PDIF Optical & Coaxial 5.1 Surround to Stereo RCA + Headphone — 192kHz PCM, Plug-and-Play
AUD-DCODE-ANAUPC 813982023901
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Overview
The KanexPro AUD-DCODE-ANA is a compact, licensed Dolby Digital and DTS audio decoder featuring an integrated 24-bit audio DSP for high-fidelity digital-to-analog conversion. It converts optical (Toslink) or coaxial digital audio input to simultaneous stereo RCA and 3.5mm headphone analog output, making it ideal for home theaters, conference rooms, gaming setups, and multimedia systems.
With support for PCM sample rates up to 192kHz and surround decoding up to DTS-ES 6.1 channels, this ultra-compact 40g decoder bridges modern digital audio sources to legacy analog speaker systems and headphones without requiring a full-size AV receiver. Driver-free, plug-and-play operation with no software installation needed.
Key features
- Decodes Dolby Digital (AC-3), DTS, and PCM digital audio to 2-channel stereo analog output
- Supports PCM sample rates: 32K, 44.1K, 48K, 88.2K, 96K, 176.4K, 192KHz
- Dolby Digital 5.1 and DTS-ES 6.1 channel surround decoding and downmix to stereo
- Dual simultaneous outputs: stereo RCA (L/R) and 3.5mm headphone jack
- Dual digital inputs: optical (Toslink) and coaxial with manual selector switch
- LED status indicator: Red solid (PCM/No signal), Red blink (Dolby), Green blink (DTS)
- Integrated 24-bit audio DSP for high-fidelity conversion
- Driver-free, portable, plug-and-play — no software required
- Ultra-compact: 72 × 55 × 20 mm, 40g
| Technical | |
|---|---|
| Audio Decoding | Dolby Digital (AC-3) • DTS • DTS-ES 6.1 • PCM |
| PCM Sample Rates | 32K • 44.1K • 48K • 88.2K • 96K • 176.4K • 192KHz |
| DAC Resolution | 24-bit |
| S/N Ratio | 103 dB |
| Channel Separation | 95 dB |
| Frequency Response | 20 Hz – 20 KHz ±0.5 dB |
| Connectivity | |
| Input Ports | 1× Optical (Toslink) • 1× Digital Coaxial (RCA) |
| Output Ports | 1× Stereo RCA (L/R) • 1× 3.5mm Headphone |
| Input Selector | Manual slide switch (Optical / Coaxial) |
| Physical | |
| Enclosure | Plastic • Black |
| Dimensions | 72 mm (D) × 55 mm (W) × 20 mm (H) |
| Weight | 40 g |
| Power | DC 5V / 1A (adapter included) |
Does this decode Dolby Digital Plus or Dolby Atmos?
No. The AUD-DCODE-ANA decodes standard Dolby Digital (AC-3) and DTS. It does not support Dolby Digital Plus (DD+), Dolby Atmos, or DTS-HD. For streaming services that default to DD+, set the source audio output to PCM or Stereo.
What PCM sample rates are supported?
The decoder supports PCM at 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, and 192kHz — broader than most competing decoders which cap at 96kHz.
Can I use both the RCA and 3.5mm outputs at the same time?
Yes. Both outputs are active simultaneously, allowing connection to powered speakers via RCA and headphones via 3.5mm at the same time.
How do I select between optical and coaxial input?
Use the slide switch on the back panel of the unit to select between Optical (Toslink) and Coaxial input. Only one input can be active at a time.
What power supply is required?
The unit requires a 5V/1A DC power adapter, which is included in the box. Do not use adapters with higher voltage as this may damage the unit.
Does this require any driver or software installation?
No. The decoder is fully plug-and-play. Connect cables, apply power, select the input, and audio output begins automatically.
No sound from my speakers after connecting — what should I check?
Verify the input selector switch matches your cable type. Check that the source device audio output is set to PCM, Bitstream, or Auto. Confirm the 5V power adapter is connected and the LED is active. If using a TV, set audio output to External Speakers.
I hear static or distorted audio — how do I fix it?
The source is likely outputting a format the decoder cannot handle (e.g., Dolby Digital Plus or DTS-HD). Change the source audio output to standard Dolby Digital or PCM. Also ensure the optical cable is fully seated.
What warranty does this product include?
Please contact KanexPro sales or visit kanexpro.com for current warranty information.
What do the LED indicator colors mean?
Red solid indicates PCM decoding or no signal. Red blinking indicates Dolby Digital decoding. Green blinking indicates DTS decoding. If no LED is lit, check the 5V DC power connection.
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