Rockville RV12.2B Dual 12" Sub Enclosure Kit vs 10" 800W Under Seat Car Subwoofer

The RV12.2B is the bigger, louder system: two 12-inch subs in a vented angled MDF box, a mono Class A/B amp rated 400W RMS, and a full 8 AWG wiring kit in the box. The 10-inch under-seat package is far smaller and lighter, mounts under a seat, and its 220W RMS suits tight cabins and stock electrical systems. Reviewers of dual-12 vented kits praise output and deep bass but note the box eats most of a trunk; owners of slim under-seat units like the hidden fit but say bass is modest. Buy the RV12.2B for maximum output and a complete install; buy the 10-inch for space and a factory-look install.

• Choose the RV12.2B if you want real sub-bass output, have trunk or hatch space for a large vented box, and want the amp and wiring included in one kit.
• Choose the 10-inch under-seat package if space is tight, you want bass without losing cargo room, and a 220W RMS system matches your head unit and charging system.