AVPro Audio Extension Kit for eARC
This is a transmitter-receiver duo for audio codec transfer (audio signal only; video data is not processed) from a television to a centralized system distribution location using the eARC feature in the HDMI 2.1 specification. With nearly 30 times the audio bandwidth capacity of optical connections, eARC delivers onboard TV App high-bitrate lossless codecs, or ATSC 3.0 NextGen TV Dolby AC-4 tuner audio, to an AVR or Preamp-processor. The kit also may be used to transmit TOSLINK or L/R analog audio through multi-use ports. The high protocol overhead for eARC of nearly 37 megabits per second provides a bandwidth rate equal to eight channels of 192 kHz, 24-bit uncompressed PCM audio. 3D immersive audio codecs such as Dolby Atmos and DTS:X are precisely transported by the AC-AEX-DEARC-KIT using Category cable (Cat 6A recommended) for distances as great as 100m/328ft. Using the HDMI 2.1 eARC return channel feature, AVPro Edge’s proprietary High Bitrate-Link I2C analysis provides timing stability during data transfer for as many as 32 uncompressed audio channels, perfect for the most demanding object-oriented, immersive 3D-audio playback systems that Home Theater enthusiasts might configure. AP-LINK maintains bit-for-bit, accurately regulated data clocking during long-distance digital audio codec transmission for uncompromised decoding accuracy and complete fidelity to original signal content.
Additionally, AP-LINK monitors and maintains precision audio-with-image synchronization at the display, for a natural-looking presentation with all content. The AC-AEX-DEARC-KIT accurately manages the one megabit-per-second bidirectional data signal that is modulated on top of the eARC audio signal, responsible for synchronizing lip-sync correction data, while also handling transmission of the regularly-timed “heartbeat” signal to the television (the heartbeat signal controls the muting of built-in TV speakers). eARC’s dedicated data channel greatly improves compatibility and reliability over ARC for dependable automation repeatability.  
AP-LINK
Synchronizes precision audio data transmission timing – including high-bitrate codecs – for performance equivalent to adjacently placed equipment.
Selectable Inputs
Located at the television, the transmitter's selectable inputs may be switched between HDMI ARC or eARC, with an HDMI output available for a soundbar or local gear use. TOSLINK or L/R analog output may be taken from the display and transferred to a remote distribution system location.
L/R & TOSLINK
When switch-selected, dual-purpose analog stereo in/out and mini-TOSLINK connectors provide local use options with sound bars and wireless headphone base units, or at the system endpoint for two-channel audio distribution (audio output type may be required to be selected in the television menu).
Bidirectional IR & RS-232
Local room control options for remote system components.
PoC Capable
Discreet power-over-cable, or via supplied 12VDC adapter.
ARC & eARC
While engineering for the kit is focused on eARC enhancements, ARC is also available for suitably equipped legacy AVRs and pre-processors.