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RECOIL

RECOIL BB-4 Bass Blocks Designed to Protect Car Audio 4 Inch Speakers

  • Based on 1,067 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Sep 22
Order within 21 hours and 24 minutes
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Size: Protect 4" Speaker


Features

  • Protects car audio 4 speakers from receiving damaging frequencies.
  • Frequencies blocked: 4 ohms: 0-1200 Hz / 8 ohms: 0-600 Hz
  • Easily handles power of up to 50 watts.
  • Orange color coded leads for easy identification. Encased with wire leads for easy installation.
  • Designed to enhance the performance and power handling of tweeters by removing frequencies beyond their capabilities.

Description

Protects car audio 4” speakers from receiving damaging frequencies.

Brand: RECOIL


Speaker Maximum Output Power: 50 watts


Frequency Response: 1200 hertz


Connectivity Technology: wired


Audio Output Mode: Stereo


Audio Output Mode: Stereo


Mounting Type: Car Mount


Enclosure Material: plastic or rubber


Speaker Type: Tweeter


Additional Features: Protects Speakers


Antenna Location: car


Subwoofer Diameter: 4 inches


Color: Orange


Is Waterproof: FALSE


Warranty Type: Limited


Control Method: Touch


Speaker Size: 4 inches


Woofer Diameter: 4 inches


Tweeter Diameter: 6 inches


Specific Uses For Product: Car Audio Systems


Controller Type: Corded electric


Unit Count: 2 Count


Item Weight: 0.03 kg


Compatible Devices: Car Audio System


Compatible with Vehicle Type: Car


Power Source: Corded Electric


Brand: RECOIL


Model Number: BBC


Model Name: BBC


Built-In Media: BB-4 Bass Blocks


Number of Items: 2


Customer Package Type: FFP (Flat Free Package)


Manufacturer: RECOIL


Age Range Description: Adult


Speaker Maximum Output Power: 50 watts


Frequency Response: 1200 hertz


Number of Audio Channels: 2


Impedance: 4 ohm


Connectivity Technology: wired


Wireless Technology: No Wireless Communication Technology


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: wired


Audio Driver Type: Dynamic Driver


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 22

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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  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Perfect Little Bass Blockers for 3.5" Dash Speakers
Size: Protect 3.5" Speaker
I installed these RECOIL BB-35 bass blockers inline on my new Kicker 3.5" speakers, and they do exactly what I needed them to do. In my setup, the 3.5" dash speakers are installed in parallel with 6.5" Kickers on the same channel of the amp. These bass blockers help keep the low-end bass out of the smaller dash speakers, which lets the 6.5" speakers hit a little harder in the mid-bass while the 3.5" speakers handle the cleaner highs like they should. The result is a better-balanced sound with less distortion from the dash speakers, especially when turning the volume up. They are well made, compact, and easy to install. The wiring was straightforward, and they were small enough to tuck away in my 2023 Jeep JL dash without making the install messy. For the price, these are hard to beat. Great product at a great price, and they worked exactly as expected. ... show more
Reviewed in the United States on June 17, 2026 by Rk Magill
    • No words really! They work well
Size: Protect Tweeter
WOW!
Reviewed in the United States on August 9, 2026 by Quentin Johnson
    • Great to prevent blowing out speakers
Size: Protect 6.5" Speaker
Essential add when powering up your system so you don't blow out your speakers. Easy to install, just splice it into the positive wire. It blocks the low level bass signals from playing through the speaker, letting it exclusively play the mid and high level sounds. With that said, you probably only want to use these in combination with a separate subwoofer so you can still have some bass in your system. ... show more
Reviewed in the United States on June 25, 2026 by Stephen Walker
    • Awesome for Dodge Journey!
Size: Protect 3.5" Speaker
I recently replaced all 6 speakers in my 2015 Dodge Journey with MTX Terminator speakers and I noticed that it sounded awfully distorted and the 3.5” speakers on the dash were playing low frequencies which they are NOT supposed to do, and that really scared me thinking that it would blow them. I did some research and another person wrote a review on these about how these capacitors changed the whole sound system on their Ram and blocked out the low frequencies from their dash speakers, so I decided to give these a try and see if it would make a difference. After splicing up the Metra harness and wiring these capacitors up, it changed the WHOLE SYSTEM! The door speakers AND dash speakers all sound loud AND clear! No more worrying about the dash speakers blowing, and it even gave the door speakers more bass. 100% would recommend these if you own a Chrysler/Dodge/Jeep/Ram, these little things solve your problem! ... show more
Reviewed in the United States on December 20, 2025 by Ryan Ponter
    • What you need for small speakers
Size: Protect 6.5" Speaker
They do help the sound quality by keeping the base out of the small speakers. And they're compact size makes it easy to get them out of the way.
Reviewed in the United States on July 26, 2026 by Terry Penn
    • Great product
Size: Protect 3.5" Speaker
These work great I can tell a big difference in the sound of my tweets 100%
Reviewed in the United States on June 3, 2026 by BradB $73
    • Great value for cleaner tweeter performance
Size: Protect Tweeter
These helped clean up my sound tremendously. Beige installing them on my tweeters, I would get distortions at moderate volume levels due to lower frequency notes (bass) -- depending on the song. I would have to reduce the bass input and others on my equalizer to clean up the distortion and would not get the sound I really wanted. Now I can get much better performance from my tweeters at any volume level. Great value Highly recommend. ... show more
Reviewed in the United States on March 31, 2026 by LudeLyfe
    • did not work for my application
Size: Protect Tweeter
Not sure if i installed incorrectly but they did not work at all, they actually made it so my speakers did not work at all, once removed the speakers worked as they should, i was dissapointed, but that doesnt mean everyone will have the same luck as i!
Reviewed in the United States on May 7, 2026 by Amanda Maria

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