DIGITAL DESIGNS RL-SW10-D2 Subwoofer 25 cm 2+2 ohm
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RL Series - Power Tuned - Subwoofers - DD Audio
DIGITAL DESIGNS RL-PSW15-D2 Subwoofer 38 cm 2+2 ohm
Alpine W10S4 Car Audio BassLine Series Sub Single 4 Ohm 500W Peak 10" Subwoofer with Rhino-Coated Standard Universal Single 10" Sub Box Enclosure | 110TRUCK-RL-ALP19-W10S4
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Amazon.com: RockvilIe SBG1158 15" 800 Watt Subwoofer Sub for Church Sound Systems : Musical Instruments