Search  for anything...
EARTHQUAKE

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

    • Based on 44 reviews
Condition: New
Checking for product changes
$66.95 Why this price?
Save $183.04 was $249.99

Buy Now, Pay Later

As low as $11.16 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Apr 10
Order within 20 hours and 27 minutes
Available payment plans shown during checkout

Recently Viewed

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


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


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


Speaker Size: 12 Inches


Power Source: Corded Electric


Woofer Diameter: 12 Inches


Water Resistance Level: Not Water Resistant


Package Type: FFP


Audio Driver Type: Dynamic Driver


Audio Driver Size: 12 Inches


Subwoofer Connectivity Technology: 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: Thursday, Apr 10

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • No more port noise
Style: 12-inch (v2)
Review Image by frabor frabor
Review Image by frabor frabor
I was given am old 12" MK powered sub, with a dead amp. After using it for a while , I really did not like the sound, is was not low enough. So I decide to retrofit the unit by removing the amp, closing the gap and slapping a 12" slap in its place. The result has been tremendous and strong clear bass, it has taken the sub to new levels. You can add weight to tune it to your liking by using washers and nuts. It has a very robust and strong thick rubber surround with a very respectable XMax. The unit is very nicely built, very robust and ready for low bass "abuse". ... show more
Reviewed in the United States on January 14, 2025 by frabor frabor
    • 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
    • Not enough mounting information. No easy to install.
Style: 8-inch
Sounds great. Paired with a Rockford Fosgate 8 inch subwoofer in a large boombox. Like the ability to tune with the washers. But, this requires a stepped hole to properly mount. This is not mentioned in the manual. Also the required cutout hole is different than what is stated.
Reviewed in the United States on May 12, 2024 by David Hoffman
    • Good but only modifications.
Style: 8-inch
Got 8inch to replace broken Bass Radiator. I had to spend over 1hr to do modifications. 1. 8 inch port did not fit, I had to re-sand opening. 2. Mount holes did not fit, I had to re-drill everything. After it was complete, it sounded great but again, a lot of work required.
Reviewed in the United States on September 7, 2024 by VK
    • 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
    • SlapsV2
Style: 12-inch (v2)
Review Image by Brandon D. Mccain Brandon D. Mccain
Review Image by Brandon D. Mccain Brandon D. Mccain
Review Image by Brandon D. Mccain Brandon D. Mccain
The media could not be loaded. This version feels more beefier than the V1 for some reason-so quality went up a notch. The cutout is slightly different than the v1 (smaller) so I had to make plates so they fit Over the original v1 hole. The specs (IN Detail) can be found only on the Earthquake EU website-and not the American one for some reason. No big deal. I have them in a 2.4cf box which puts it at 24hz (no mass). They are in the box pictured that housed my V1s. 4 total on 2 15s and WOW. They are loosening bolts all over the car. You may loose a db versus ported but the quality makes up the difference. Definitely worth it. I love the fact that I didn't need to make a box that took up the entire front and back my trunk for these lows. No EQ in the car but do have it on a crossover. Do it right and you'll love it. Make sure your sub has a Qts of .4 or below otherwise you may break something. ... show more
Reviewed in the United States on April 11, 2024 by Brandon D. Mccain Brandon D. Mccain
    • These work good but build quality/design is lacking.
Style: 12-inch (v2)
I have 2 12in slaps paired with 1 12in sub running around 1200-1500 watts in a properly designed enclosure for this setup. My initial impressions, I was amazed to achieve the output and sound quality I was able to achieve with these. Fast forward only two weeks and I start hearing what sounds like a loud interior panel rattling. After further inspection, I noticed one of the slaps has a crack on the front side, Starting right below where the weight is mounted internally. So I exchanged it through amazon return thinking i received a bad unit. Not even a week later another crack in roughly the same area. CONCLUSION: these do allow for big deep bass from a smaller sized enclosure but will only last if you’re using them on a low power system, maybe 1000watts max if you use two passives per driver, maybe 500 max if you use 1 passive per driver. ... show more
Reviewed in the United States on October 19, 2024 by Anonymous
    • Took my existing dual 12" seal box down to 21 Hz
Style: 12-inch (v2)
Review Image by Average Consumer Average Consumer
Review Image by Average Consumer Average Consumer
Review Image by Average Consumer Average Consumer
Review Image by Average Consumer Average Consumer
I couldn't be happier with the performance gains after installing a pair of these SLAPS M12-V2 passive radiators in my dual 12" box. The 2 Skar SVR-12's are fed with 1,200 watts RMS at 2 Ohms, and sounded great before adding the M12's. Now they hit harder, just about as tight. Most of all, they go way lower, and produce a startling subsonic shock on kick drum bass. Using a tone generator, I have fun showing friends how my car starts to shake apart at 26 and 23 Hz. You can't hear the bass that low, but you can sure feel it! I added a 290g disc of stainless steel to each passive radiator, which tuned my box to about 21 Hz, and used red loctite on the double nuts. ... show more
Reviewed in the United States on August 1, 2024 by Average Consumer Average Consumer

Can't find a product?

Find it on Amazon first, then paste the link below.