2) Alpine Type-R R2-W12D4 12" 750w RMS Car Subwoofers+Vented Sub Box Enclosure - Rockville Audio
2 Alpine R2-W12D2 R Series 12" subwoofer with dual 2-ohm voice coils – absoluteusa
Insane Bass From Two 12" Alpine Type R (SWR12D4) Subwoofers!! - YouTube
Alpine - SBG-1244BP Ready to use Band Pass Subwoofer (4Ohm)
2) Alpine Type-R R2-W12D2 12" 750w Subwoofers+Vented Box+Mono Amplifier+Amp Kit - Rockville Audio
Alpine 12 Inch Type-S Subwoofer (SWS-12D2/D4) | SK Customs Car Audio & Home Theater | Atlanta | Norcross | Duluth | John's Creek
Alpine S-W12D2 Car Audio Type S Series Sub Dual 2 Ohm 1200W Peak 12" Subwoofer | ALP19-S-W12D2
Alpine S-A60M Mono Power Amplifier with S-SB12V 12 Inch Subwoofer Enclosure
Alpine Type S SWS-12D4 12 Inch 1500 Watt Max 4 Ohm Round Car Audio Subwoofer
LAB SlapBox™ 2.00 ft^3 Ported MDF Enclosure Box for Single Alpine 12" S-Series Subwoofer
Alpine 12" Subwoofer S-series w / Dual 4-Ohm Voice Coils
Alpine SWR-1242D Type-R 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Alpine SWE-1242 Type-E 12" 4-ohm subwoofer at Crutchfield
Alpine Type-S SWS-12D4 12" 1500 Watt Dual 4-Ohm Car Audio Subwoofer Sub SWS12D4 | Audio Savings
Alpine SWX-1243D Type-X 12" Subwoofer - Signature Car Sound
Alpine S-W12D4 | 600W RMS 12" Type-S Series Dual 4 Ohm Car Subwoofer
Alpine Car Speakers and Subwoofers X-W12D4 (12" Subwoofers) from World Hi-Fi Video & Appliance
Alpine 12” Type R-Series Ported Bass Package Includes one Alpine R-W12D4 12” subwoofer, and 2.25 ft³ optimized ported enclosure
Alpine SWA-12S4 - Bassline 12 Inch Subwoofer - Car subwoofers - Custom Sounds & Tint
Alpine Halo R2-Series Dual 12" Voice Coil 4-Ohm Loaded Subwoofer Enclosure Black R2-SB12V - Best Buy
Alpine Type-R 12" Subwoofer | P.C. Richard & Son
Alpine R-SB12V Pre-Loaded R-Series 12-inch Subwoofer Enclosure, S-A60M 600 Watt Mono Amplifier, and Wiring Kit - Creative Audio
2) Alpine Type R 12 Inch 2250 Watt Max 4 Ohm Round Car Audio Subwoofer - Walmart.com
