Rockville RVB8.1A Powered Subwoofer vs 10" 800W Under Seat Car Subwoofer

The Rockville RVB8.1A is the safer pick for most shoppers. It is a complete powered 8-inch sub in a vented box with a built-in 200W RMS amp, a dash bass remote, Kevlar-reinforced cone and both RCA and high-level inputs, and owners consistently call it easy to install and strong for its size. The 10-inch under-seat package claims more power and a slimmer aluminum enclosure that fits beneath a seat, but its listed specs conflict (800W continuous versus 220W RMS, 150 Hz frequency response) and it has little owner feedback. Buy the Rockville for proven, simple bass; consider the 10-inch only if under-seat mounting is a hard requirement.

• Choose the Rockville RVB8.1A if you want a proven all-in-one powered sub with a vented enclosure, dash bass remote and simple RCA or speaker-level hookup.
• Choose the 10-inch under-seat package if you must mount the sub beneath a seat and want a slim aluminum enclosure with a larger driver.