Drop-In Ceiling Speaker is a full-range, 1-watt, self-amplified speaker that is quick and easy to install. The ACD2X2 is a 2' x 2' speaker that fits perfectly into place in 2' x 2' ceiling grids – without needing to cut ceiling tiles or requiring the use of tile support rails. The ACD2X2 can also be easily installed in 2' x 4' ceiling grids.