Amazon.com: Harmony Audio HA-A1500.1 Universal Car Stereo Class D Mono 3000W Sub Amp, 43C154-N 15" Comp C15 Series 300W RMS 4 Subwoofer and 2X15VMBASS SPL Bass Labyrinth Vent Sub Box Stereo Enclosure :
Kicker (2) 43CWR82 8" CompR CWR8 Series Sub 300W RMS Subwoofer Bundle with Harmony HA-A800.1 Amplifier & Amp Kit | HA-SUBPACK61
Infinity Primus 3000A Mono subwoofer amplifier — 300 watts RMS x 1 at 2 ohms at Crutchfield
Infinity Primus 3000A 300W RMS Power Compact Mono Subwoofer Car Amplifier System Bundle with 2x 12" 1200 Watt Peak Power High-Performance Car Audio Subwoofer and Amplifier Wiring Kit - Road Entertainment
Kicker 12CX3001 CX300.1 CX 300W RMS Mono Car Audio Class D Amplifier/Amp+Remote | Audio Savings
JBL Stage 3001 Full-Range Car Audio 300W RMS Class D Mono Subwoofer Amplifier Bundle Combo with JBL Club WS1000 800W 10" Club Series 2 or 4-Ohm Selectable Shallow-Mount Car Audio Subwoofer -
Infinity Primus 3000A 300W RMS Power Compact Mono Subwoofer Car Amplifier System Bundle with 12" 1200W Max Power High-Performance Car Audio Subwoofer and Amplifier Wiring Kit - Road Entertainment
300W Subwoofer Amplifier | OSD Audio
Wholesale Car audio Amplifier 2.1 channels Car subwoofer Amplifier RMS 100W*2CH ClassAB 300W*1 Class D Car Amplifier From m.alibaba.com