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EARTHQUAKE

EARTHQUAKE Sound SLAPS-M12v2 12-Inch Mass Tuned Passive Bass Radiator for Home and Mobile Audio Subwoofer Enclosures

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Arrives Monday, Sep 8
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Style: 12-inch (v2)


Features

  • Increases subwoofer output and efficiency without additional amplifier power or enclosure volume
  • Patented design that allows for new subwoofer design possibilities where even small enclosures can be tuned to low frequencies
  • User-tunable for optimum performance for a wide range of enclosure sizes and musical preferences with preinstalled 270g mass included
  • Can be integrated into virtually any subwoofer/enclosure combination with a slim mounting depth of less than 3 inches
  • Adds up to +6dB of bass compared to conventional sealed and ported enclosures; Enables deep bass from a compact volume without any annoying port noise

Description

The Earthquake Sound SLAPS-M12v2 is a tunable passive bass radiator that significantly increases subwoofer efficiency and ability for ultra-low frequency reproduction without additional amplifier power or enclosure volume. Designed to perfectly complement all good quality long throw woofers on the market, SLAPS add up to +6dB of bass compared to regular sealed and ported enclosures. The benefit of SLAPS being user-tunable is that they can be integrated into virtually any subwoofer/enclosure combination. SLAPS (Symmetrically Loaded Audio Passive System) overcomes the limitations known from the conventional sealed and ported enclosures that tend to limit excursion. As the name indicates, SLAPS is built symmetrically, distinguishing it from traditional or other inferior passive devices on the market today. SLAPS technology integrates a dual structure of identical opposites in its suspension design, resulting in identical properties in both the negative and positive pressure domain. The high efficiency and performance are a result of the pneumatic coupling between SLAPS and an active driver. The unique and patented design of SLAPS allows the active driver compression-free excursion, resulting in a deep, dynamic, and powerful bass response.

Brand: EARTHQUAKE


Speaker Maximum Output Power: 10 Watts


Connectivity Technology: wired


Audio Output Mode: Stereo


Mounting Type: Flush Mount


Material: steel


Model Name: SLAPS-M12v2


Speaker Type: Passive Bass Radiator


Special Feature: Increases sound pressure level (SPL)


Recommended Uses For Product: Subwoofer enclosures


Compatible Devices: Desktop, Television


Subwoofer Diameter: 12 Inches


Unit Count: 1.0 Count


Controller Type: Corded electric


Surround Sound Channel Configuration: 2.1


Color: black


Included Components: Warranty card, Product insert, SLAPS-M12v2 passive radiator with mass installed


Product Dimensions: 2.25"D x 12.37"W x 12.37"H


Item Weight: 2.12 Pounds


Is Waterproof: FALSE


Warranty Type: Limited


Number of Items: 1


Control Method: Touch


Speaker Size: 12 Inches


Power Source: Corded Electric


Woofer Diameter: 12 Inches


Water Resistance Level: Not Water Resistant


Customer Package Type: FFP


Audio Driver Type: Dynamic Driver


Audio Driver Size: 12 Inches


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: wired


Includes MP3 player?: No


Specific Uses For Product: [POSSIBLE] home audio systems, car audio upgrades


UPC: 689759101642


Style: 12-inch (v2)


Manufacturer: Earthquake Sound


Item Weight: 2.12 pounds


Country of Origin: China


Item model number: SLAPS-M12v2


Date First Available: October 17, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • I found the limits!
Style: 12-inch (v2)
Review Image by Robert D. Robert D.
Review Image by Robert D. Robert D.
The media could not be loaded. I ran this for a couple of years in a diy home theater sub and not knowing what I was doing had way too much weight on it trying to get it to dig low. It made my sub bottom out and I had to turn it way down. About a year ago I decided to try it in the trunk of my car with a different subwoofer and played around with the weight. I ended up removing the pre installed weight and took it down to about 200 grams total and in my 1.2³ft box, that was exactly what I was looking for. With my single skar svr12 on 1.5k this thing dug down to ~ 25hz before dropping off noticably. I probably still had too much weight as it started ripping the inner surrounds and ripping apart the passive radiator. I don't know if it impacted something in the trunk or the weight over time cracked the cone. Anyways it ended up destroying itself but I'm so impressed with the sound that I ordered another. I got 3-4 years out of that one so it didn't owe me anything. I'll attach a video of it beating and the aftermath, but if you're more sensible than me and willing to actually take the time to tune it instead of just throw weight at it and go you'll get even longer use out of it without with of destroying things. I never thought I could get a single cheap 12 to seriously flex my windows at 26hz but this little beast made it happen. Even though I killed it I obviously still recommend it, it's expensive for a pr but definitely worth it! Now to get this new one broken in :D ... show more
Reviewed in the United States on May 25, 2025 by Robert D. Robert D.
    • Perfect Passive Subwoofer Replacement For Sunfire True Subwoofer Mark IV
Style: 10-inch (v2)
I've been searching for a replacement for the passive subwoofer since my stock one finally cracked from 25+ years of abuse/enjoyment. I read a post online from a Sunfire enthusiast and he had replaced his Mark II with this Earthquake Passive Subwoofer and it was a complete success. Let me tell you, when I installed it in my Mark IV, all I can say is WOW! It performed even better than the original stock passive subwoofer. I experienced some massive excursion and deep deep base on this Earthquake. Highly recommended if you have the same problem with a Sunfire True Subwoofer Mark II or IV. The bolt pattern on the Earthquake is a complete match for the Mark IV enclosure. When you receive the Earthquake, I would be careful to drill out the holes on the Earthquake because it comes with the holes covered by the subwoofer rubber. But once you tap those holes, it is an exact fit. I love the Earthquake so much I will buy another one to replace my second Mark IV since I have a dual subwoofer setup. ... show more
Reviewed in the United States on November 26, 2024 by SonnyRoo
    • This bad boys really do slap. But it later cracked ..
Style: 12-inch (v2)
Review Image by # 1saturn # 1saturn
Review Image by # 1saturn # 1saturn
These bad boys really do slap next best thing to a ported box but can be placed into a smaller box...Days later it cracked I got another replacement and that also crack. I will look into a diffent brand.
Reviewed in the United States on February 17, 2025 by # 1saturn # 1saturn
    • Top notch performance but they could have made tuning much easier.
Style: 10-inch (v2)
I absolutely love the performance of this passive radiator. This is very likely the highest performance passive radiator on the market today. 1. Tuning it though is made unnecessarily difficult though. The screw & nuts holding the tuning weights have some sort of thread lock glue on them that is quite permanent & very difficult for someone like me who is disabled & don't have a lot of power tools in order to get it off. It took me a couple hours of trying different ways to remove it without damaging the radiator. 2. They don't provide any extra tuning weights. I had to go to the hardware store a couple of times in order to get weights. The first weights I bought were totally inadequate, but did use one as a large washer to help hold in the tuning weights that I eventually bought. This was necessary due to the large size of the hole in the weights that did work. Otherwise the bolt could have pulled through damaging the radiator. It would have been very nice if they had actually provided a set of tuning weighs for various tunings in the box. 3rd, they need to provide a longer bolt. About the performance. You can gain a lot of performance & headroom using this passive radiator. I gained almost 10db at my tuning frequency of 16Hz & 5db at 25Hz. This represents a minimum of having at least 3 times more power without having to actually have a bigger amp. At 16hz that is almost equivolent to having an amp 10 times more powerful. Other than the issues listed above this appears to be a very well made passive radiator. People say it is cheaper to build a ported speaker. True, however if you make a mistake in your cabinet when utilizing the cabinet walls as part of your port it just became more expensive than a good passive radiator if you make a mistake in tuning as you will have to start from scratch again. With a passive radiator you can just add or remove weights to correct your tuning. A passive radiator won't be as loud as a port in a properly tune system but this one will get you close. It is truly super high performance. You also won't have unplanned resonances as you would with a port. Like the sound of your sealed system but need more output without a bigger amp or losing that nice tight sealed system bass. Look no further than this passive radiator. Make sure you get some DSP unit though so as to help balance the system. My sub amp has built in DSP but fortunately I didn't have to make any adjustments other than turning off my 5.5db bass boost @16Hz & adjusting the overall subwoofer volume down 5db. ... show more
Reviewed in the United States on July 25, 2024 by "germanium20"
    • A nice passive radiator
Style: 12-inch (v2)
I own four of these now. Even talked a few friends into purchasing them as well. Good quality product. Still confused on the version. 12 V3 or the added V3 on the end. I must be blind. I didn't see any difference between the point or version 2 versus version 3. Maybe it's marketing? Maybe it's the manufacturing material but they are quality but I don't agree with the price of them at this time. But the price of everything else has gone up too. But back to the review. These don't appear to make any type of flapping noise they handle. All of the pork pressure frequencies a port would use, but instead they stroke their suspension in and out to create the base wave from that port instead. Thus, they're silent. If you're looking to do a sealed enclosure and it's too small, you might put one of these in there. I've done experiments from using the old Sunfire subwoofer with these to a good high quality car audio f or home audio subwoofer with these as well. Don't think you'll go wrong. Give him a try. They are much better than using ports. ... show more
Reviewed in the United States on November 16, 2024 by C. Young

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