8K HDMI™ or eARC Audio Extractor (eARC, 3.5mm, Optical) (BK-931)
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HDMI Audio Extractor Non-ARC HDMI output
· Video resolutions up to 8K@30Hz or 4K@120Hz
· HDMI audio out formats up to Dolby Atmos or DTS:X
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1. Ultimate HDMI 2.1 Audio Extractor for Home Theater
Unlock next-gen AV experiences with the BK-931, a powerful HDMI 2.1 eARC audio extractor built for modern home theaters. Supporting up to 8K@60Hz and 4K@120Hz video resolutions, it offers seamless 48Gbps FRL and 18Gbps TMDS bandwidth transmission with full compliance to HDCP 2.3 and advanced HDR formats like Dolby Vision and HDR10+.
2. Advanced Gaming & Media Support
The BK-931 delivers cutting-edge HDMI 2.1 features such as VRR, ALLM, QMS, QFT, and SBTM, providing responsive gameplay and smooth content transitions. Whether you're a gamer or a cinephile, this 8K audio extractor guarantees ultra-clear video with low latency and enhanced visual depth.
3. Flexible Audio Extraction & Multi-Port Output
Extract immersive audio like Dolby Atmos, DTS:X, or LPCM 7.1CH from either HDMI source devices or ARC/eARC-enabled TVs. The BK-931 supports multiple output interfaces—including optical (S/PDIF), 3.5mm analog, HDMI eARC, and HDMI audio-only—making it compatible with everything from HDMI eARC soundbars to traditional AV receivers.
4. Intelligent Control & Seamless Integration
With CEC passthrough, your eARC TV remote can control connected HDMI sources and soundbars. Advanced EDID management ensures compatibility across various display and audio configurations. Its compact design allows easy integration behind displays, in AV racks, or tight cabinet spaces—perfect for clean, professional setups.
BK-931: 8K eARC HDMI Audio Extractor Dolby Atmos
Key Features:
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HDMI 2.1 & HDCP 2.3 Compliant – Ensures support for the latest video and content protection standards.
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Supports Video Resolutions up to 8K@60Hz and 4K@120Hz – Provides ultra-high-definition video transmission.
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48Gbps FRL & 18Gbps TMDS Video Bandwidth – Supports high data throughput for uncompressed video and audio.
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HDR10+ & Dolby Vision Pass-through – Compatible with advanced high dynamic range formats.
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VRR, ALLM, QMS, QFT, and SBTM Support – Enables enhanced gaming and video playback features.
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LPCM 7.1CH, Dolby TrueHD, Dolby Atmos, DTS-HD Master, and DTS:X Audio Support – Delivers immersive, high-fidelity audio.
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Audio Extraction from Media Source or ARC/eARC TV – Flexible audio sourcing options.
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Multiple Audio Outputs – Optical, 3.5mm analog, HDMI eARC, and HDMI audio-only ports for diverse connectivity.
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CEC Control – Allows an eARC TV to control the source device and eARC soundbar for seamless integration.
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Advanced EDID Management – Ensures broad compatibility with connected devices.
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Compact Design – Ideal for convenient installation within any home theater environment.
BK-931 eARC Audio Extractor is a versatile solution designed for home theater systems requiring audio extraction from media sources, especially when using a non-eARC TV paired with an eARC soundbar or a non-eARC amplifier.
Fully compliant with HDMI 2.1 and HDCP 2.3 standards, it supports ultra-high video bandwidths of 48Gbps FRL and 18Gbps TMDS, enabling seamless transmission of video resolutions up to 8K@60Hz and 4K@120Hz. The device also ensures compatibility with advanced HDR formats including HDR10+ and Dolby Vision.
Featuring support for key HDMI 2.1 functionalities such as Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), Quick Media Switching (QMS), Quick Frame Transport (QFT), and Source-Based Tone Mapping (SBTM), the BK-931 delivers a smooth, immersive viewing experience.
Audio performance is equally robust, with support for LPCM 7.1 channel, Dolby TrueHD, Dolby Atmos, DTS-HD Master Audio, and DTS:X formats. The unit allows audio extraction directly from the media source or via ARC/eARC-enabled TVs. It offers multiple audio output options including Optical, 3.5mm analog, HDMI eARC, and HDMI audio-only ports for flexible connectivity.
BK-931 User Manual Download
