New 10” inch Quantum Audio 1000 Watts Subwoofer + Quantum Audio 1200 Watts Car Audio Bass Amplifier w/ Speaker Box for Sale in San Jacinto, CA - OfferUp
QW1000/12S4 – Quantum Audio
Quantum Audio 15" spl subwoofer, quick look at - YouTube
Package 2 Quantum Audio QAW12D2 12 5000 Watt Peak 1250 Watt RMS Dual 2 Ohm Car Sub Subwoofers w Vac Aluminum Dome + Atrend E12DSV Dual 12 MDF Vented Subwoofer Enclosure +