Amazon.com: Behringer Eurolive B1200D-PRO 500W 12 inch Powered Subwoofer & Alto Professional TX308 – 350W Powered DJ Speakers, PA System with 8" Woofer for Mobile DJ and Musicians, Small Venues : Musical
DS18 SRW8.4D 8" Car Subwoofer 500 Watts Dvc 4-Ohm Shallow Mount
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500W DSP Mono Class D Subwoofer Amplifier, 4ohm Stable, Auto-Sensing SAM500, Black Series
XSUB12 Outdoor In Ground Subwoofer + SMP500 Mono Sub Amplifier Bundle | Outdoor Speaker Depot