Amazon.com: Planet Audio PL12S Pulse Series 12 Inch Car Audio Subwoofer - 1000 Watts Max, Single 4 Ohm Voice Coil, Sold Individually, for Truck, Boxes and Enclosures, Use with Amplifier : Electronics
Bluesound PULSE SUB+ (Black) Wireless powered subwoofer for Bluesound wireless audio systems at Crutchfield
Bluesound Pulse Sub+ White Wireless Subwoofer - PULSESUB+WH
GOgroove BassPULSE 2.1 Computer Speakers with LED Glow Lights and Powered Subwoofer - Gaming Speaker System for Music on Desktop, Laptop, PC (Red) (Used) - Walmart.com
PSUB346 Pulse 12' inch Max 400W Subwoofer (Ex-display unit)