Polk Audio PSW111 8" 300W Subwoofer PSW111 B&H Photo Video
Nady PSW-15 15 Inch 600 Watt Subwoofer | PSSL ProSound and Stage Lighting
Amazon.com: Polk Audio PSW10 10" Powered Subwoofer - Power Port Technology, Up to 100 Watts, Big Bass in Compact Design, Easy Setup with Home Theater Systems Black : Electronics
PSW.124 Subwoofer - Soundstream Technologies
JBL PSW-1000 10 Powered Sub Woofer Tested and Works - Etsy
DD Audio 15" Redline PSW Series Subwoofer – Gately Audio