MTX TN8MS Terminator Series 8" compact powered under-seat subwoofer enclosure at Crutchfield
Amazon.com: PyleUsa 10-Inch Low-Profile Amplified Subwoofer System - 900 Watt Compact Enclosed Active Underseat Car Audio Subwoofer with Built in Amp, Powered Car Subwoofer w/Low & High Level Inputs - PPLBX10A :
QBUS10P 500W Peak (200W) RMS 10" Ported Amplified Loaded Under Seat Su — NVX