HDA-915 is a versatile HDMI™ audio extractor decoder designed to route high-quality audio from any HDMI™ source or ARC-enabled TV to external audio systems. It delivers both digital optical (SPDIF) and analog stereo (L/R) audio simultaneously, while passing through pristine 4K@60Hz video with 4:4:4 chroma sampling via its HDMI™ output. Supporting 18Gbps bandwidth and HDCP 2.2, it ensures compatibility with modern 4K 10-bit HDR content, including HDR10, HDR10+, Dolby Vision and HLG. For added audio fl exibility, it supports bitstream audio down-mixing, allowing Dolby® 5.1 and DTS® 5.1 surround audio to be converted into 2-channel analog stereo while preserving clarity. Simultaneously, full multi-channel audio is maintained through optical and HDMI™ digital pass-through for users who prefer surround sound output. ARC support enables audio return from ARC-enabled televisions. CEC pass-through allows seamless control between connected media sources and TV. The compact design and plug-and-play installation make it ideal for any home theater setup or commercial installations.