PUMP-12 Passive Radiator Module

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A unique and patented passive radiator module, the PUMP-12 is essentially two horn loaded 12″ passive radiators that adds diverse implementation possibilities to our existing lineu p of SLAPS passive drivers. Earthquake Passive Radiators provide additional bass, without additional amplifier power or enclosure volume. Designed to perfectly complement all good quality long-throw woofers on the market. SLAPS/Pump-12 add up to +6dB of bass compared to regular sealed and ported enclosures. They can be integrated into virtually any sub/cabinet combination. The PUMP-12 requires 9″ x 14″ x 14″ of installation space. Take the recommended sealed enclosure dimensions of the chosen active driver and add the 9″ x 14″ x 14″ to it. We recommend sanding the cutout hole and pushing the module’s dust caps inwards to allows the PUMP-12 to go through the cutout hole without damaging the surrounds. Pump-12 enables the transfer of high amplifier power into low frequency output. Since the active driver does not have to fight against increasing pneumatic pressure in a closed cabinet or over-excursion close to a port tuning frequency. In a closed cabinet design the pneumatic loading of the woofer increases as a function of its travel, this causes compression. Pump technology possesses none of these limitations. Show more