PUMP-12 Passive Radiator Module
In stock
Features
- Coupled with almost all woofers, increases output up to +6dB without added amplifier power
- Suitable for high output needs where space is limited
- Installs into a sealed enclosure
Specifications
- Piston area: 226 sq.in. (0.1458 m2)
- Cutout Dimensions: 5.5″ (140mm) x 12.75″ (324mm)
Note: 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.).
Other Information
Model: PUMP-12
UPC: 0689759101215
Priced and sold by the piece
$149.99 $225.00
In stock
ComparePUMP-12 Passive Radiator Module
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 lineup 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 works great with the following active subwoofer combinations:
- One 10″ subwoofer + one PUMP-12
- One 12″ subwoofer + one PUMP-12
- One 15″ subwoofer + one PUMP-12
- Two 10″ subwoofers + one PUMP-12
- Two 12″ 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 Enclosure Size:
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.
When using a sealed enclosure, there is one peak of resonant frequency at which the amplifier draws the least current. The graphs below illustrate the difference between a typical sealed box enclosure and the PUMPed box enclosure.
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.
RatingGreat value
Awesome product, supplements my already-decent (homemade) sub, easily installed, increases low bass volume tremendously. Really releases cabinet backwave.
These things are legit. This guys complaining about no spider!! COME ON MAN!!...If you ever used a slaps passive radiator then u know it don't need it...next they're going to complain about "there's not even any terminals to hook up this cheap thingy." SSSSHHHHHH:/ these are for high excursion competition subs for 1/2 to 1/3 of the price of those crappy dayton audio with a fake a!@ spider for 200. If your surround isn't the same size or better then yea buy the mid bass looking Dayton for mediocre bass and inferior/,*$ product....JS
I love this thing. With realistic results in mind this thing is the cats pajamas. It added bass that sounded clean and tight. It definitely is noticeably different and im pushing 2 Subzero 12s with a 5000 watt earthquake powerhouse. Im thinking i may add another 2k and see what happens.
If you know anything about radiators. This will bring to next level
Update 1/24/22: It's been a while since initial review and I will say I am impressed how good this sounds bass-wise. Great output with no Port-Noise. If you do hear it's Mechanical limits it's probably your tuning is off or too much gain. I bought two more Radiators and plan to build a box with 2 15s with their own chambers and own Radiators. I am making this custom box for a car audio application and will update up to the final install. Right now, it's physical properties. The plastic housing is nothing to write home about. I have added the necessary volume per the additional space needed. When they say, "sand the edges" of the opening, they mean it. Even sanding at 150 grit the opening still resulted in scuffs trying to surround. You have to 'tuck' the surround while pushing it in to not to damage it going in but, still got scuffs anyway. Do not let a picture fool you: these are BIG. The screw holes are also very close to the cutout. Do not get it wrong otherwise you might as well do a ported box. Prepare, then execute. UPDATED 6/8/2023 I've made a few boxes since the initial and second post but by far what I call the 'Demon Box' with this radiator I've uploaded has went into full-blown stupid loud. My vision becomes blurred when the bass drops. I notice it driving and at stop lights. The last time that happened was my system in 2018 that was two 12s on 3000 watts rms, a high output 250amp alt, ported, ect. These Radiators bring the pain-and I love it. I just bought another one because I want to do a sealed box with 2 earthquake 15 dbxi's I already have. Can't wait to start building that box. Current box I made 3.5cf @35hz. Hit that buy button💪💪💪
4.0 out of 5 stars Have not heard it yet. But....2nd update is here....
Brandon D. Mccain July 25, 2021
I went from bass to shaking floor boards. This things a monster
Haven't been able to install this myself but have heard a friends with one installed in a car. Sounds phenomenal! Thing is, you need a pretty big box. I have two 10's in a custom box and i can't fit it anywhere. Make sure you measure first and have room for this as the top is rather large and it requires quite a bit of depth to install. I think i may use this in a home subwoofer box.
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