Amazon.com: JBL SUBBP12AM - 450 Watts (150W RMS) 12” Amplified 12 in. Ported Subwoofer with Sub Level Control and Distortion Free Bass with Gravity Magnet Phone Holder Bundle : Electronics
How To Fix Subwoofer Distortion? - SubwooferAddict
PURIFI PTT4.0W04 - 4″ Ultra Low Distortion Long Stroke ...