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Universal Bass Knob Control for Car Amplifier, Bass Volume Knob with 4-Pin Extension Cable.

  • Based on 10 reviews
Condition: New
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$14.89 Why this price?
Save $55.09 was $69.98

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Availability: In Stock.
Fulfilled by Amazon

Arrives Sep 18 – Sep 19
Order within 21 hours and 32 minutes
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Features

  • PRECISION BASS CONTROL - This amplifier bass control knob is designed to solve the issue of unsynchronized volume between your car stereo and subwoofer, delivering the ultimate music experience with perfect bass adjustment.
  • 4 PIN EXTENSION CABLE - The extra-long 3.5M/12FT cable allows you to connect the knob from your car trunk to the driver's seat, providing convenient control over your subwoofer's volume.
  • EASY INSTALLATION -Simply plug the 4-pin crystal connector into your subwoofer's audio interface and connect the other end to the bass control knob. The built-in power indicator shows the connection status for hassle-free setup.
  • HIGH-QUALITY MATERIALS - Featuring a pure copper core cable and high-quality insulated PVC protective coating, this bass control knob ensures durability and reliable performance.
  • AFTER-SALES SERVICE - If you encounter any issues such as missing parts or a non-functional indicator, contact us immediately for a replacement or solution.We stand by our products with a full quality guarantee.

Brand: NAPHYLAIFA


Connector Type: 4 Pin


Cable Type: /


Compatible Devices: Audio


Special Feature: Lightweight


Package Dimensions ‏ : ‎ 8.54 x 7.8 x 1.06 inches; 2.89 ounces


Date First Available ‏ : ‎ April 9, 2025


Manufacturer ‏ : ‎ NAPHYLAIFA


Best Sellers Rank: #3 in Car Amplifier Interconnect Cables


Customer Reviews: 3.6 3.6 out of 5 stars 10 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 18 – Sep 19

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Works great
Works great
Reviewed in the United States on July 17, 2025 by Tristen Cafferty

  • This doesnt work the box is a dummy box
Doesnt work !!!!!
Reviewed in the United States on May 28, 2025 by Kaitlin Perry

  • It’ll do the job
It’s cheap but it does the job. Definitely not a kicker or anything but it works. Has a slight amount of static and every once in a while the sub will kick even without music playing. Easy to use and install. The cord is perfect length maybe even a bit long.
Reviewed in the United States on June 21, 2025 by Sedona

  • Works just like the one that came with my amp
Replaced the one that came with my subwoofer amp because it was going in and out. Works just like the original. I like the power light on the dial.. Great value as it is definitely less expensive than replacing your amplifier. Enjoy!
Reviewed in the United States on May 31, 2025 by SWIM (someone who isn't me)

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