With an overall depth of 4" (102mm) the FAP42TC is the ideal choice when high fidelity audio and wide, even coverage is necessary but space above the plenum is restricted. For wall mount applications (tanning salons or surround sound) the short 4" depth can even work in most stud wall installations. A simplified input section features a 4-pole Phoenix style connector for easy daisy chaining between speakers. A straightforward cover including combination 1/2" (13mm) / 3/4" (19mm) knock-outs is provided for installment ease. The popular Atlas Sound "C-ring / V-Rail" mounting system is provided for quick installation into drop tile acoustic ceilings and existing construction drywall.