BETA THREE SIGMA 118A ( SUBWOOFER ) - Batavia Putera Prima
Beta Three - Philippines - The B3 Sigma 118A... back in Stock!! Deep Round Bass at a compact package... 18" Woofer in a band-pass design | Facebook
REL B3 active subwoofer Hifi Gear
Bose - LOT de 2 - 5 pouces B3 haut-parleurs de conducteur woofer de sous-boîte acoustimass | eBay
Beta Three - Philippines - B3-ΣJ218 Dual 18" Subwoofer System . P49,800 / pc. Retail ΣJ Series Sub speakers utilise high power low frequency drivers with structurally solid enclosures. The ΣJ Series