18" Subwoofer Enclosures

Ported enclosures for 18" subwoofers, built for serious SPL and deep bass. Each box is designed around a specific subwoofer's airspace, tuning and port area requirements. At this size, plan your charging system too: a high output alternator keeps voltage up under heavy load.

Shop other sizes: 8", 10", 12", 15", or see all subwoofer enclosures.