7.2 HD In-Wall Speaker System (HD-725) w/8" Powered Sub RWSUB8 by Acoustic Audio (4) Rectangular 5.25" 2-Way In-Wall/Ceiling Speakers (2) Round 5.25" 2-Way In-Wall/Ceiling Speakers (1) dedicated true center channel HD In-Wall Speaker (2) 10" In-Wall HD Subwoofers (1) 8" Powered Home Theater Subwoofer