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4K HDMI to Optical Audio Converter + HDMI PCM 5.1 7.1 to Analog Surround Decoder
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4K HDMI to Optical Audio Converter + HDMI PCM 5.1 7.1 to Analog Surround Decoder

Bottom line: The 4K HDMI to Optical Audio Converter + HDMI PCM 5.1 7.1 to Analog is a specs-and-price decision rather than a crowd-consensus one in the sound cards category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Backed by AllAboutAdapters's warranty and support channels

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

4K HDMI LPCM 5.1 7.1 DD DTS AC3 Audio Converter ExtractorThis innovative HDMI audio processor is a great digital audio converter for decoding digital LPCM 7.1 or 5.1 channel into analog surround for analog amplifier or receiver.It can also extract compressed Bitstream audio such as Dolby, AC3 and DTS 5.1 through its optical audio output for further decoding by other A/V receiver or amplifier[Note]:Dolby, AC3 and DTS 5.1can NOT be decoded into analog surround sound for output.This device also supports 3D video and deep color content and input resolutions up to 4Kx2K.Easy EDID Switch For Audio…

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SpecPicks Verdict

SpecPicks scored 4K HDMI to Optical Audio Converter + HDMI PCM 5.1 7.1 to Analog… using a rating × review-volume × price-fit model applied to published specs and reviews across the sound cards category. AllAboutAdapters's sound cards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for sound cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Great digital to analog audio decoder solution for transcoding uncompressed digital LPCM 7.1 or 5.1 channel sound into analog surround format for existing analog amplifier or receiver. Extract compressed digital Bitstream audio such as Dolby Digital, AC3 and DTS 5.1/7.1 embedded in HDMI feed and output through its optical audio output for further decoding by downstream device. Supports uncompressed LPCM 7.1, LPCM 5.1 and PCM in analog output through the multi-channel 3.5 output ports.
  • Deliver 7.1 and 5.1 discrete channels through its front left/right, center/subwoofer, rear left/right and rear center left/right channel to deliver a directional and more realistic effect Supports compressed audio such as Dolby Digital, AC3, DTS 5.1 and PCM 2CH through optical audio output. Easy EDID dip switch selection so users can easily control their HDMI source to send the desired digital audio format for decoding or conversion.
  • No HDMI output with TV is required when receiving audio at the analog or optical audio output. Supports all HDTV resolutions including 4K, 2K, 1080p, 1080i, 720p, 576p and 480p. Output resolution follows input. Fully compliant with HDMI 1.3, HDCP 1.2 and DVI 1.1 standards.
  • Supports HDMI audio sampling rates up to 192 kHz. Supports optical (S/PDIF) digital audio sampling rates up to 192 kHz. Supports high-bit-rate (HBR) audio.
  • Its built-in repeater function helps devices regenerate and equalize the HDMI output signal to be same with sharp detailed images with original audio sound quality. Supports 12-bit per channel (36-bit all channel) deep color and 3D . Supports HDMI CEC (Consumer Electronics Control) bypass.

Full Specifications

BrandAllAboutAdapters
ModelAU-HCP2
InterfaceHDMI
Unit Count1 Count
Part NumberAU-HCP2
CompatibilitySwitch
Interface TypeHDMI
Number of Pins19
Number of Channels2

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4K HDMI to Optical Audio Converter + HDMI PCM 5.1 7.1 to Analog Surround Decoder is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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4K HDMI to Optical Audio Converter + HDMI PCM 5.1 7.1 to Analog Surround Decoder
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