Switch, splitter, matrix, or multiviewer?
Turn source, display, and simultaneous-view needs into the correct routing device class.
Open Routing Device Selector →HDMI routing & distribution workbench
Plan the routes before comparing boxes.
Separate topology, port capacity, display negotiation, audio return, and fault scope. A headline resolution alone does not establish a working distribution system.
How large must the matrix be?
Count present and spare inputs, outputs, audio zones, and crosspoints.
Open Matrix Size Planner →What will mixed displays negotiate?
Screen lowest-common-mode, copied EDID, fixed EDID, and declared downscaling behavior.
Open Mixed-Display Checker →Where should HDMI audio leave the path?
Match source location, ARC/eARC, receiver inputs, extraction, and requested audio class.
Open Audio Route Planner →Which distribution layer is implicated?
Use direct, output-scope, source-scope, mode, cable-swap, and power-cycle observations.
Open Distribution Isolator →Build a routing system in the right order
Start with a route table, then validate negotiation, audio, control, protection, and cables.
Read the planning guide →Order: choose the topology → reserve ports → define the shared display mode → place the audio path → isolate failures with a direct control.