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Black metal box with HDMI, optical, coaxial, USB and Bluetooth ports, 5.1 channel RCA outputs, remote included

IHDAPP

IHDAPP UD851B 5.1CH HDMI ARC audio video converter

SKU CH-ZMZ7-RZ72B MPN UD851B

Extracts 5.1 surround sound from HDMI ARC, coaxial, optical, USB and Bluetooth sources with 4K 30 Hz video pass-through and 24-bit 192 kHz decoding

  • Adapter typeAudio Converter Decoder
  • First connectorHDMI / COXIAL / OPTICAL / PC-USB / U disk-USB / BT-5.0
  • Second connector5.1CH
  • Units per package1
  • Design styleHDMI ARC Audio Extractor
  • Product colorBlack
  • HDMI 2.0b and HDCP 2.3 handle 4K at 30 Hz
  • Decodes DTS, AC3, FLAC, APE to 5.1-channel analog
  • Optical, coaxial and HDMI ARC inputs all convert to 5.1 output
  • IR remote and front button switch sources; unit remembers last input
  • 192 kHz / 24-bit DSP with 90 dB SNR and 0.03 % distortion

HDMI ARC audio extractor for 5.1 surround

This converter decoder accepts HDMI, coaxial, optical, PC-USB, USB storage and AUX inputs, then decodes all sources to simultaneous 5.1 channel analog RCA and S/PDIF outputs. HDMI ARC output passes video up to 4Kx2K at 30 Hz with 3D support while extracting audio for external amplification. The metal chassis houses a 192 kHz / 24-bit DSP with 90 dB signal-to-noise ratio and 0.03 % distortion.

Home cinema builders needing multi-source decoding

Ideal for users who want to route game consoles, media players, PCs and USB drives into a single 5.1 speaker system or AV receiver without manual cable swapping. The IR remote and front-panel button provide instant source switching, and power-off memory restores the last active input. Buyers requiring HDMI 2.1 bandwidth, eARC, or more than one HDMI input should consider alternative devices.

6 Gbps HDMI 2.0b bandwidth with HDCP 2.3

The single HDMI input and ARC output are limited to 6 Gbps, supporting 4Kx2K at 30 Hz and common 1080p, 720p and 480p resolutions at 24, 50 or 60 Hz. This bandwidth ceiling determines whether the unit can pass your source's video signal without downscaling, making it the key specification for compatibility checks.

How it compares

Measured against everything we stock in Video Signal Converters, at today’s prices. Recalculated every night.

Price $80.99
Pricier than about 90% of the 1,459 comparable items (median $17.99).

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Specifications

Product
Adapter typeAudio Converter Decoder
Design styleHDMI ARC Audio Extractor
Product colorBlack
Audio & video
SoundYes
Ports & slots
First connectorHDMI / COXIAL / OPTICAL / PC-USB / U disk-USB / BT-5.0
Second connector5.1CH
In the box
Units per package1
In the box1 : Decoder machine x1 2 : Infrared remote controller x1
3 : DC-12 V/1A power adapter x1 4 : Digital optical fiber cable x1
5 : Bluetooth Antenna x1 6 : User manual x1

Questions about this item

Does the IR remote need its own batteries to adjust volume and switch inputs?

The remote requires two AAA batteries which are not included with the converter.

What is the maximum HDMI video resolution the UD851B can pass through without downscaling?

The HDMI input and output support up to 4Kx2K at 30 Hz, including 3D formats.

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