Description OVERVIEW The Soundtube AC-CM8-PCB is a purple pre-construction bracket for use with the CMi series of speakers. Compatible with CM600i, CM690i, CM800i, CM801i, CM890i, CM800d, CM890d and CM1001d (-T). FEATURES PRE-CONSTRUCTION BRACKET SPECIFICATIONS Soundtube AC-CM8-PCB CM800i PRE-CONSTRUCTION BRACKET