For Jbl Boombox2 High-end 4 Inch 106mm Mid Bass Speaker Subwoofer 4ohm 40w Woofer Low Frequency Long Stroke 1pc - Speakers - AliExpress
JBL 5021909X 15" Woofer For PRX715 And PRX725 | Full Compass Systems
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
JBL ARENA 12
JBL 4645 Professional Series 18" Subwoofer - Perfect for JBL 4343 Spea