Competition-ready dual 10” ported sub box, tuned to 30 Hz.
$319.99
The M4-210SP.30Hz is a dual ported subwoofer box for 10” subs, engineered for competition with a 30Hz tuning. Featuring multiple structural reinforcements and a 1.5-inch MDF front wall, this box ensures deep, resonant bass. Available in bitone carpet or all black, it’s designed for serious competitors.
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