Couple of questions about Alto powered subs and ported vs non ported enclosures in general. | The Gear Page
ALTO PROFESSIONAL TS212S - Subwoofer Attivo 625W in RMS | Musical Store 2005
REAL NOISE Sounds - ALTO TRUESONIC TS310 / TS212S SUBWOOFER ACTIVE PA SYSTEM, 6500W R15 000 ($1500 USD) Incl Free Delivery With two 15″ tops and two 18″ subwoofers this system packs
WOOFER 12' POUR SUB ALTO TS212S TS312S
Open Box Alto TS212S 12" Powered Subwoofer Level 1 | Guitar Center