Simplecom CM425 HDMI 2.0 Audio Extractor Optical SPDIF and 3.5mm Stereo with ARC 4K@60Hz

SKU: V28-CM425 Barcode: 9350414002208

$44.00 $64.95 Save $20.95

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Simplecom CM425 HDMI 2.0 Audio Extractor Optical SPDIF + 3.5mm Stereo with ARC 4K@60Hz

CM425 is an upgraded HDMI 2.0 Audio Extractor, supports video resolution up to 4K@60Hz and audio output through Optical SPDIF or 3.5mm stereo. It also supports ARC (Audio Return Channel), so you can connect it to an ARC compatible TV directly. It’s the ideal solution when you would like to output the audio through an external speaker system with analog or optical input, also when an older audio system without HDMI input.

CM425 enables extracting of embedded audio from HDMI source or extracting of audio from an ARC compatible TV directly, and output audio separately on either an analog stereo audio connector or a digital optical SPDIF connector.

CM425 meets the HDMI 2.0b standards with 18Gbps bandwidth support, which is ideal for home theatre, 4K gaming and video streaming on a 4K TV. This little adapter can be placed behind your AV hardware and powered by USB, which can take power from USB wall charger or an available USB socket on your TV, Media Player or PC.


HDMI 2.0b and HDCP 2.2 compliant with 18Gbps bandwidth support

Support HDR and video resolution up to 4K@60Hz

Convert 1 HDMI input to 1 HDMI + (SPDIF + 3.5mm or R/L) audio output

Support ARC (Audio Return Channel) for ARC compatible TV

Powered by USB, Micro USB port for power input

Three Audio Mode: Pass-through, 2CH and 5.1CH

Supports compressed audio DTS Digital, Dolby Digital and uncompressed audio PCM, LPCM


HDMI Version: HDMI 2.0b (backwards compatible)

HDMI resolution support:  480i/480p/576i/576p/720p/1080i/1080p/4K@60Hz

Input: 1x HDMI Input

Audio Outputs: 1x SPDIF (Optical),  1 x 3.5mm Stereo Audio (Analog)

Video Output: 1x HDMI output (HDMI pass-through)

ARC Support: Yes (with switch)

HDMI 3D Support: Yes

HDCP Version: HDCP 2.2

Max Bandwidth: 600MHz

Max Baud Rate: 18Gbps

Support Color Format: 24bit, 30bit, 36bit deep color

Digital audio Support: Dolby Digital, Dolby TrueHD, DTS-HD, DTS, PCM, LPCM

Max Input Cable Distance: 10m AWG26 HDMI standard cable

Max Input Cable Distance: 10m AWG26 HDMI standard cable

Power Input: 5V/1A

Dimension: mm (LxWxH)

Package Contents

1x HDMI Audio Extractor

1x 0.5M HDMI Lead

1x USB Power cable

1x 3.5mm to 2RCA(R/L) Adapter

1x User Manual