Large 15” ported sub box for competition-level bass.
$319.99
The M4-115SP.30Hz is a competition-grade single ported subwoofer box for 15” subs, tuned to 30 Hz for maximum bass output. Featuring multiple structural reinforcements and a 1.5-inch MDF front wall, this box is built for serious bass performance. Available in bitone carpet or all black, it’s ideal for competitive audio setups.
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