BKA-1 8K HDMI Audio Extractor — HDMI 2.1 / 48Gbps FRL, 4K@120Hz, Dolby Vision, EDID

The BKA-1 is a compact HDMI audio extractor engineered for HDMI 2.1 and HDCP 2.3 environments. It accepts high-bandwidth signals (48Gbps FRL and 18Gbps TMDS) while providing flexible audio extraction and routing for modern AV setups. Video support includes up to 8K@60Hz 4:2:0 12bit, native 4K@120Hz 4:4:4, and 2K@60Hz 12bit resolutions. Dynamic HDMI 2.1 features such as VRR, ALLM, QMS, QFT and SBTM are fully supported, and a wide range of HDR formats (HDR, HDR10, HDR10+, Dolby Vision, HLG) pass through unchanged. Audio passthrough covers LPCM 7.1CH as well as high-resolution bitstreams including Dolby TrueHD, Atmos, DTS-HD Master and DTS:X. The unit can de-embed audio from either the HDMI input or a TV ARC feed and output it to S/PDIF and L/R connectors for connection to external sound systems. Additional functionality includes advanced EDID management to ensure source/display compatibility and support for CEC control from output devices back to input sources. Its small footprint makes installation simple and flexible in tight AV racks or home theater installations.