Amazon.com: DR DOUBLE ROCK 8 inch CB08 Underseat Subwoofer Car Audio 600 Watts 8 '' Slim Powered Subwoofer with Built in Amp Active Compact Subwoofer with Amplified+Bass Volume Control Knob : Electronics
JL A; Z 300 Watt 4 Ohm Auto Sub S 12w0 €73.49 hittech.com
JL Audio HO110-W6v3 - Car Hifi Subwoofer Gehäuse im Test - sehr gut - hifitest.de
Amazon.com: Pyle 8-Inch Low-Profile Amplified Subwoofer System - 600 Watt Compact Enclosed Active Underseat Car Audio Subwoofer with Built in Amp, Powered Car Subwoofer w/Low & High Level Inputs PLBX8A : Electronics
ACP110LG-TW1 - Car Audio - Subwoofer Systems - MicroSub+™ - JL Audio