AI4AV publishes verified control specs for 8 DHD Audio devices, covering RS-232 serial control, IP control, and the proprietary command protocols professional AV integrators and AI control agents rely on. Featured family: RM4200D DSP Frame (with RM420-850/852/853 Communication Controller). Each spec documents the transport, actions, feedbacks, and safety interlocks an AI agent or control system needs to drive the device end to end without parsing PDFs. The verifier cross-checks each command against the manufacturer's source documentation before the spec ships.