JBL Grand Touring Series GTO1204BP Bandpass enclosure with 12" subwoofer at Crutchfield
JBL GTO1214BP - Adam Rayner Talks Audio
Audio Jam Inc. - Some car audio fans love the clarity of sealed subwoofer enclosures. Others crave the added power of vented enclosures. The GT-12BP bandpass subwoofer offers both. It delivers accurate