The portable, dual 18-inch SB-218 subwoofer provides the low end necessary for demanding low frequency program material requiring at high output levels.
The SB-218 utilizes two 18 inch woofers from the GM series of P.Audio transducers. The woofer uses two neodymium magnets to allow a long winding length to be used without sacrificing BL product. This allows BL linearity to be maintained over an extremely large diaphragm displacement range.
The cabinet is constructed from Baltic birch plywood for low weight and high strength. It is a ported design which allows extremely flexible array configu – ration for either cardioid or standard use. The cabinet allows includes several fixing points which allow external accessories to be locked in place on the cabinet (note: these are not designed as suspension points).