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Your cart is empty.Ever since its initial prototype phase, Earthquake's PUMP-12 passive radiator module has left a lasting impression by increasing the subwoofer's SPL by up to +6dB. The PUMP-12 module features two 12-inch passive radiators that are combined and horn-loaded into a single unit. When integrated into a well-designed sealed subwoofer enclosure, the PUMP-12 can enhance bass output by up to +6dB without requiring additional amplifier power. Testing between a standard sealed enclosure and an Earthquake PUMPed enclosure revealed that the PUMPed enclosure's amplifier drew 30% less current than the former. With less current draw, the speaker's impedance increases, thus increasing SPL. The Earthquake PUMP-12 facilitates the transfer of high amplifier power into low-frequency output since the active driver doesn't have to battle against increasing pneumatic pressure in a closed cabinet or over-excursion near a port tuning frequency. Unlike in a standard sealed enclosure, where the pneumatic loading of the woofer rises as a function of its travel, causing compression, Earthquake's passive radiator technology faces no such limitations. The PUMP-12 works seamlessly with all good quality drivers and is ideal for high-output requirements where space is limited. It's essential to ensure that the combined piston area of the active driver(s) does not exceed that of the PUMP-12 (226 sq.in.) when selecting which active driver(s) to pair with the PUMP-12. Elevate your bass output with the Earthquake Sound PUMP-12.
steve worful
Reviewed in the United States on May 23, 2024
Great value
Kyle
Reviewed in the United States on March 21, 2023
Even mounted incorrectly outside the box it still sounds awesome. My original sealed box was smaller than the recommended size for the single 12” sub, so adding this ported dual radiator setup sounds fantastic. So much fun to look at also!!
Johnny D
Reviewed in the United States on May 28, 2022
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
KBF
Reviewed in the United States on March 25, 2022
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.
Brandon D. Mccain
Reviewed in the United States on July 25, 2021
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 6/8/2023I'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💪💪💪
Daniel Doriott
Reviewed in the United States on January 23, 2019
Absolute garbage. Earthquake states in can be used with 2 12's. I am only using 1 RE XXX 12 and it completely fell apart after less than 2 hours. VERY cheaply made. They didnt even put a full spider. They cut a few strips of very thin, super soft spider. The only thing u could use with this is a $22 boss12 inch sub that handles 125w with a 1 inch voice coil. I highly doubt this is an authentic Earthquake product
HokieBigT
Reviewed in the United States on July 27, 2018
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.
Placeholder
Reviewed in the United States on December 23, 2018
I mounted mine on the outside. Inside a Klein audio 13” sub box was to spec actually a little smaller because I didn’t account for the volume of the unit that’s why I put it outside not only did it hit like crazy but kinda cool to watch the radiators loud like crazy. I know this speaker is too big for these but these never bottomed out and I hit them hard. Plus a great conversation piece for sure pics to come soon
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