Amazon.com: Klipsch SPL-120 Powered Subwoofer 12 inches, Black : Electronics
Amazon.com: HERTZ SPL Show Series SS-15-D2 SPL 15 in. (380mm) 1200 Watt RMS 2-Ohm DVC Subwoofer : Electronics
Savard Speakers Hi-Q Series v2 8" D2 Ohm Subwoofer
HERTZ SPL Show Series SV-2501 10" (250mm) SPL Midrange 4-Ohm Speaker (Sold Individually)
Amazon.com: Hertz 380 Mm 2 + 2 Ohm Sx 380 D - Spl Subwoofer : Electronics
Skar Audio ZVX-15v2 D1 15" 3000 Watt Max Power Dual 1 Ohm SPL Car Subwoofer
Amazon.com: Harmony Audio HA-ML122 Monolith 12" Car Audio Competition SPL Sub 3000W Dual 2 Ohm Subwoofer : Electronics
Amazon.com: Gladen Spl 12 30 Cm Subwoofer : Electronics
Amazon.com: Pair Faital Pro 18HP1060 4ohm Neodymium 18" Mega SPL Subwoofer 2400W Speaker : Electronics
Amazon.com: Klipsch SPL-120 Powered Subwoofer 12 inches, Black : Electronics
Amazon.com: 5 CORE 12" inch Full Range Subwoofer Car Audio Dual Cone Speakers Give High Powered Sound Quality, 23 oz Heavy Bass Replacement Premium DJ Subs RMS 75W Peak 1200W, 8 Ohms
Ground Zero GZIW 10SPL Subwoofer, Black, 10"
Amazon.com: HERTZ SPL Show Series SV-200L 8 in. (200mm) SPL 4-Ohm Woofers (Pair) : Electronics