Acoustic Audio 5-Piece 8" (HD8) HD In-Wall / Ceiling Speaker System with Center Channel Acoustic Audio 5-Piece 8" (HD8) HD In-Wall / Ceiling Speaker System with Center Channel (4) Round 8" HD 2-Way In-Wall/Ceiling Speakers, (1) dual 6.5" dedicated true center channel HD In-Wall Speaker 8" Round Speakers: 175W RMS - 350W Peak Each / Center Channel: 175W RMS - 350W Peak Speaker Features: 2-Way Design and Functionality, Butyl Rubber Surround, Kevlar Cones with Extended Throw Drive Assembly, Titanium Tweeters. Mounting Depths: (Surrounds: 3.8", Center Channel: 3.25") Subwoofer Features: Built-in Digital Drive High Efficiency Amplifier, Down-Firing Long Throw Driver, Downward Radiating Slot Port, Bass Level / Gain Control, Line-Level and Speaker-Level Inputs , Signal Sensing ON/OFF, and Black Ash Finish