Alpine W12S4 12" Bass-Series Subwoofer (4 Ohm) Micro Four-Thirds It features convenient programmable automatic

It features convenient programmable automatic timed shut off and adjustable thermostat

Flame effect can be operated with or without heat

Metal case shields the electronics from vibrational and electromagnetic interference

which are operated with direct current

Patented ASP™ microprocessor voltage monitoring

Alpine W12S4 12" Bass-Series Subwoofer (4 Ohm) Micro Four-Thirds It features convenient programmable automaticThe W12S4 is for the car audio enthusiast to add powerful bass while keeping it budget friendly at the same time. The Bass Series subwoofers are engineered to be fun and loud in a budget friendly category by combining retro styling with enough efficiency to run on 250W RMS. An optimized magnet circuit allows more focused magnetism in the gap which results in improved efficiency, tighter bass control, and more output. 12 inch single 4 subwoofer