Amazon.com: MTX TN8MS Terminator 8 Inch Micro Compact Amplified Subwoofer Enclosure for Small Vehicles with Class A/B Amplifier, Variable Bass Boost, External Bass Control, and Smart Engage Auto Turn On Circuitry :
ELAC Muro™ SUB2010 (White) Compact subwoofer with optional wireless capability and Bluetooth® app control at Crutchfield
Infinity BassLink SM 2 8" compact powered under-seat subwoofer enclosure at Crutchfield
Alpine PWE-S8-WRA 8-inch Compact Powered Subwoofer System for 11-18 Jeep Wrangler Unlimited JK | Quadratec