The GA3 is a 19″ 1u rack mount adapter for Sennheiser G3 & G4 EM100/300/500 receivers (mounts 1 or 2 units). Also rack mounts the G3/G4 300-IEM transmitters, the AC3/AC41 combiner and the ASA1/ASA214 antenna splitter.
The Sennheiser GA3 rack mount kit makes it possible to mount any two units side by side in a 1U rack space using 2 rack ears and a bottom plate to link the two units.
Alternatively one unit may be mounted by using the 2 rack ears and the supplied blank panel. This panel has two cut-outs for the AM2 front mount antenna kit.