Invisible Passive Distributed Transmission Line Subwoofer / 50 watts / Hidden design vents into the room through front or base convertible port / 63-1/5” x 13-1/2” x 4-3/4”

Invisible Ported Acoustic Band-pass Passive Subwoofer / Single Channel 40 Watt / Front or side convertible, length adjustable port / 14-1/5” x 5-1/3” x 6-1/3”  

Invisible Ported Acoustic Band-pass Passive Subwoofer / Single Channel 80 Watts / Front or side convertible, length adjustable port / 23-4/5” x 10-3/5” x 6-1/10” 

13" In-wall subwoffer with integral sealed enclosure / 13" active woofer with 13" ultra low bass radiator / Fits standard 16" stud bay / For use exclusively with Definitive Technology SubAmp600 (sold separately)