AllAboutAdapters

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

Name: 4K HDMI to Optical Audio Converter + HDMI PCM 5.1 7.1 to Analog Surround Decoder
Brand: AllAboutAdapters
SKU: B07J49P1H2
Price: 58.00 USD
Availability: InStock

By SpecPicks Editorial · Verified 2026-07-06

$58.00

Buy on Amazon — $58.00 Compare to similar sound cards

*Price sourced from Amazon.com. Last updated 2026-07-06. Price and availability subject to change.

Bottom line: The 4K HDMI to Optical Audio Converter + HDMI PCM 5.1 7.1 to Analog Surround Decoder is a niche pick — read recent reviews before buying in the sound cards category, priced around $58.00. Read recent reviews carefully before committing.

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…

SpecPicks Verdict

SpecPicks classifies 4K HDMI to Optical Audio Converter + HDMI PCM 5.1 7.1 to Analog… as a niche pick — read recent reviews before buying in the sound cards category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. AllAboutAdapters's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Backed by AllAboutAdapters's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

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

Brand	AllAboutAdapters
Model	AU-HCP2
Interface	HDMI
Unit Count	1 Count
Part Number	AU-HCP2
Compatibility	Switch
Interface Type	HDMI
Number of Pins	19
Number of Channels	2

Ready to buy?

4K HDMI to Optical Audio Converter + HDMI PCM 5.1 7.1 to Analog Surround Decoder is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-07-06. Price and availability subject to change.