All Comparisons
HD 18" Subwoofer

HD 18" Subwoofer

American Bass
$824.00
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VS
SB 10" SUBWOOFER - DVC | 500W RMS

SB 10" SUBWOOFER - DVC | 500W RMS

Down4Sound
$749.99
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Subwoofer Spec Comparison

ParameterHD 18" SubwooferSB 10" SUBWOOFER - DVC | 500W RMS
General
RMS Power—500 W