12 "car subwoofers as stated in Sonicelectronix. Subwoofers most perfect size subwoofers for vehicles offering the best userfriendly subwoofers available.
15" subwoofers to the degree that Sonicelectronix. Large subwoofers are harder and deeper. Will usually be much bigger to work properly, extremely strong bass.
Compatibility according to Simplecontrol. Simple control of thousands of devices. Serial tabs find device control. Devices controlled directly app. Series devices, much older tables require simple control.