The AtlasIED SM12SUB70 is designed for 8Ohm and 70.7V distributed audio applications where low frequency enhancement is desired. This model features a unique compact cabinet design with multiple 1/4"-20 inserts to allow easy suspension or wall mounting. The SM12SUB70 includes a built in 18dB / octave three-pole passive crossover network coupled to a long-excursion 12" woofer housed in multi-angle wood enclosure system. The passive crossover eliminates the need for a separate crossover or dedicated amplifier to power the speaker. A premium 70.7V transformer allows the SM12SUB70 to be paralleled with any 70.7V commercial audio system to provide extended low frequency response and more overall audio impact for foreground music systems.