The Graph shows the green area is 30% less than the yellow area. This means the amplifier current draw of the PUMPed enclosure is 30% less than that of the regular sealed box enclosure. With less current draw, the speaker’s impedance increases and therefore, SPL also increases.In summary, the PUMP-12 increases the subwoofer’s SPL by 6dB without the need to draw more amplifier current.
The PUMP-12 works great with the following active subwoofer combinations:
- One 10-inch subwoofer + one PUMP-12
- One 12-inch subwoofer + one PUMP-12
- One 15-inch subwoofer + one PUMP-12
- Two 10-inch subwoofers + one PUMP-12
- Two 12-inch subwoofers + one PUMP-12
When selecting which active driver(s) to use with the PUMP-12, it is important to make sure that the combined piston area of the active driver(s) does not exceed that of the PUMP-12 (226 sq.in.).
Recommended Box Size:
The PUMP-12 requires 9-in x 14-in x 14-in of installation space. Take the recommended sealed enclosure dimensions of the chosen active driver and add the 9-in x 14-in x 14-in 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.
Features
- Coupled with almost all woofers, increases output without added amplifier power
- Suitable for high output needs where space is limited
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Box dimensions
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43 × 40 × 22 cm
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Weight
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3.2 kg
Specifikationer
- Piston Area
- 0.1458 m2
Produkt Dimensioner
- Cut out hole
- 140mm x 324mm
- Coupled with almost all woofers increases output without added amplifier power
- Suitable for high output needs where space is limited