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Small black rectangular audio converter box with optical and coaxial inputs, RCA outputs, and included power adapter

Micro Connectors

Micro Connectors HMC-3088 Digital to Analog Audio Converter

SKU CH-8B0X-GW7F0

Converts optical or coaxial digital audio to analog stereo RCA with 24-bit resolution at 32, 44.1, 48, and 96 kHz sampling rates

  • Changer Typebuffer_19490
  • ColorBlack
  • Converts optical or coaxial digital audio to analog stereo RCA
  • Supports 32, 44.1, 48 and 96 kHz sampling rates
  • 24-bit S/PDIF bit stream on left and right channels
  • Electromagnetic-noise-free transmission for clean sound
  • Includes power adapter for simple plug-and-play setup

Digital-to-Analog Audio Converter

The Micro Connectors HMC-3088 converts optical Toslink or digital coaxial RCA signals into analog stereo RCA output. It handles 24-bit S/PDIF streams at 32, 44.1, 48 and 96 kHz sampling rates. The unit includes an AC power adapter for stable operation and provides electromagnetic-noise-free transmission. It suits home or professional setups needing to feed legacy amplifiers or recording decks.

Interface and Sampling Limits

The converter accepts only two-channel PCM sources at the listed rates; multichannel bitstreams such as Dolby Digital or DTS are not decoded. Optical and coaxial inputs share the same internal decoder, so only one digital source can be active at a time. Analogue output is fixed at line level via RCA jacks; there is no volume control on the device. The 3.5 mm jack mentioned in the supplier note is not present on the hardware.

Compatibility Check

Verify that your source equipment can output two-channel PCM at 32, 44.1, 48 or 96 kHz; devices locked to bitstream-only output will not work. Confirm the receiving amplifier or recorder has a spare stereo RCA input. Ensure a mains socket is available for the supplied power adapter. Buyers needing headphone-level output, multichannel decoding or a 3.5 mm jack should consider other solutions.

Highlights

  • Converts optical or coaxial digital audio to analog stereo RCA
  • Supports 32, 44.1, 48 and 96 kHz sampling rates
  • 24-bit S/PDIF bit stream on left and right channels
  • Electromagnetic-noise-free transmission for clean sound
  • Includes power adapter for simple plug-and-play setup

Specifications

Changer Typebuffer_19490
ColorBlack

Questions about this item

Which input should I use — Optical Toslink or Digital Coax RCA?

Both inputs accept a stereo S/PDIF stream up to 24-bit / 96 kHz; choose the one that matches your source device's output.

What does the 96 kHz sampling rate mean for my audio?

It allows the converter to handle high-resolution stereo sources such as 96 kHz / 24-bit streams without down-sampling.

What does the S/PDIF interface cap in practice?

The S/PDIF input is limited to two-channel PCM at 32, 44.1, 48 or 96 kHz; multi-channel bitstreams are not supported.

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