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EHOPHNA

Universal Bass Control Knob, Bass Volume Knob with Extension Cable for Car Amplifier

  • Based on 489 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, Jun 23
Order within 22 hours and 52 minutes
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Features

  • WORKS PERFECTLY - This amplifier bass volume control knob is specially designed to solve the problem of the car audio main control board and subwoofer volume out of sync, so that the music achieves the ultimate effect.
  • EXTENSION CABLE - The bass control knob connector cable is approximately 12.7 feet. It is usually installed in the free position of the driver to provide easier control of the volume.
  • EASY to INSTALL - the bass control knob is easy to install and use by plugging the 3-pin crystal connector into the sound interface of the subwoofer and the other end into the bass control knob.
  • HIGH QUALITY - This amplifier remote control knob adopts pure copper core cable design and high-quality insulated PVC protective wires. Which with power light to indicate the connection.
  • 100% QUALITY GUARANTEE - All of our products to give a lifetime of service. Any problems or needs, Please feel free to contact us.

Description

This amplifier bass volume control knob is specially designed to solve the problem of the car audio main control board and subwoofer volume out of sync, so that the music achieves the ultimate effect.

Brand: EHOPHNA


Color: Black


Compatible Devices: Amplifier


Material: Plastic


Product Dimensions: 7.36"D x 5.75"W x 1.26"H


Compatible Devices: Amplifier


Power Source: Corded Electric


Output Channel Quantity: 1


Amplifier Type: Solid State


Connector Type: 6.35mm Jack


Sound Profile: Bass-heavy


Audio Output Mode: Stereo


Color: Black


Enclosure Material: Plastic


Item Dimensions D x W x H: 7.36"D x 5.75"W x 1.26"H


Item Weight: 0.08 Kilograms


Brand: EHOPHNA


Model Name: EHOPHNA


UPC: 720230857662


Manufacturer: EHOPHNA


Model Number: 1


Mfr Part Number: 1


Warranty Description: 1 year


Built-In Media: 1*Bass Control Knob


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 23

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.

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Top Amazon Reviews

    • Love it Love it
Review Image by Armando Estrada
Good quality and fast shipping.
Reviewed in the United States on May 8, 2026 Reviewed in the United States on May 8, 2026 by Armando Estrada
    • Works perfect
Works like it should, the light doesn’t turn on but it’s nothing to be bothered by. This works great with my Hifonics amp.
Reviewed in the United States on July 10, 2024 by nick
    • Doesn’t work has to be brand specific
Doesn’t work with amp has to be specific to the brand. Don’t waste your money. You’re better off with an rca cable knob. With input and output Easy to install. And guaranteed to work.
Reviewed in the United States on February 15, 2026 by Guero Galarza
    • Amazing product
Product was amazing would recommend for someone wants to adjust there base on the fly
Reviewed in the United States on May 1, 2026 by Billy Asad
    • Fast shipping
Great product
Reviewed in the United States on May 9, 2026 by Harold
    • Convenient Control
I purchased this to have a quick means to control the bass from my Subs ect. Before if I wanted to adjust the bass I would have to manually adjust the knobs on the amp itself physically and would have to climb in the back of the car/trunk to do so. Not a problem every now and then but a great example of this would be when I’m listening to the radio sometimes the stations can be very “bass” heavy and this is great for “on the fly” adjustments ect. Like being able to turn down the bass all the way and actually listen to the radio on a high volume without fear of blowing up my speakers ect. Or when having a conversation with people in the car it’s so convenient to turn everything down and able to enjoy music on low volume with little to no bass. Now on the other hand it’s awesome to be able to just turn up the sound and bass all the way and shake the road up and down ect. The cable they give with it is super long as well I had no issues running the cable from my trunk into the cabin of my car and the cable had a lot of slack too. I don’t hide it inside the car panels or anything but it’s a option if you want to do ect. ... show more
Reviewed in the United States on December 28, 2024 by Reviewer
    • Works well
Worked with my amp but the power light does not come on wire was just the right length too
Reviewed in the United States on March 9, 2026 by Tiffany Scott
    • No good
Doesn't work have the same ringing noise that others complain about would like a refund
Reviewed in the United States on May 25, 2026 by Brandon

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