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
35 Series 10" 4Ω Single Voice Coil Shallow Mount Subwoofer | MTX Audio - Serious About Sound®
Tang Band W8-2282 8" Low Profile Subwoofer 4 Ohm
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 - SBA10A :
Test Bench: The New Wavecor SW280WA01 Shallow Subwoofer | audioXpress
Infinity REF1200S Reference 12 Inch Low profile Subwoofer with SSI (Selectable Smart Impedance) - Open Box - Creative Audio
BOSS Audio Systems BAB10 10 Inch Powered Under Seat Car Audio Subwoofer - 1200 Watts Max, Low Profile, Remote Subwoofer Control, For Truck, Boxes and Enclosures
Tang Band W6-2253S 6-1/2" Low Profile Subwoofer
Kenwood Excelon KFC-XW1200F Shallow-mount 12" 4-ohm subwoofer at Crutchfield