---
product_id: 538972252
title: "Universal Bass Control Knob, Bass Volume Knob with Extension Cable for Car Amplifier"
brand: "ehophna"
price: "129.55 DT"
currency: TND
in_stock: true
reviews_count: 8
category: "Ehophna"
url: https://www.desertcart.tn/products/538972252-universal-bass-control-knob-bass-volume-knob-with-extension-cable
store_origin: TN
region: Tunisia
---

# 3-pin crystal connector for easy plug-and-play 12.7ft extension cable for flexible placement Pure copper core cable with insulated PVC for durability Universal Bass Control Knob, Bass Volume Knob with Extension Cable for Car Amplifier

**Brand:** ehophna
**Price:** 129.55 DT
**Availability:** ✅ In Stock

## Summary

> 🎵 Take command of your bass, wherever you drive!

## Quick Answers

- **What is this?** Universal Bass Control Knob, Bass Volume Knob with Extension Cable for Car Amplifier by ehophna
- **How much does it cost?** 129.55 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/538972252-universal-bass-control-knob-bass-volume-knob-with-extension-cable)

## Best For

- ehophna enthusiasts

## Why This Product

- Trusted ehophna brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Premium copper core and insulated wiring ensure long-lasting, reliable performance
- • **Seamless Bass Sync:** Eliminates volume mismatch between subwoofer and main board for flawless sound
- • **Confidence Guaranteed:** Backed by a lifetime service promise—your bass control, worry-free
- • **Extended Reach Control:** 12.7-foot cable lets you position the knob exactly where you want it—driver’s seat convenience
- • **Plug & Play Simplicity:** Effortless installation with a 3-pin crystal connector—no tech headaches

## Overview

The EHOPHNA Universal Bass Control Knob features a 12.7-foot extension cable and a 3-pin crystal connector for easy installation and flexible placement in your car. Designed to synchronize subwoofer and main amplifier volume, it delivers a bass-heavy sound profile with durable pure copper core wiring and insulated PVC protection. Ideal for solid-state amplifiers, this plug-and-play accessory comes with a 1-year warranty and lifetime service support.

## 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.

Review: Not universal. - Terrible. Didn't work.
Review: Would not recommend for a MTX amp. - Bought for my MTX amp . All plugs work but the bass knob was like all or nothing . Tried turning gains down on amp and still didn’t work very well .

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C6DMPS5P |
| Amplifier Type | Solid State |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #1 in Car Amplifier Interconnect Cables |
| Brand | EHOPHNA |
| Built-In Media | 1*Bass Control Knob |
| Color | Black |
| Compatible Devices | Amplifier |
| Connector Type | 6.35mm Jack |
| Customer Reviews | 3.8 out of 5 stars 745 Reviews |
| 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 kg |
| Manufacturer | EHOPHNA |
| Material | Plastic |
| Mfr Part Number | 1 |
| Model Name | EHOPHNA |
| Model Number | 1 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Output Channel Quantity | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 7.36"D x 5.75"W x 1.26"H |
| Sound Profile | Bass-heavy |
| UPC | 720230857662 |
| Unit Count | 1 Count |
| Warranty Description | 1 year |

## Product Details

- **Brand:** EHOPHNA
- **Color:** Black
- **Compatible Devices:** Amplifier
- **Material:** Plastic
- **Product Dimensions:** 7.36"D x 5.75"W x 1.26"H

## Images

![Universal Bass Control Knob, Bass Volume Knob with Extension Cable for Car Amplifier - Image 1](https://m.media-amazon.com/images/I/71qMD3-0uJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Not universal.
*by G***S on July 2, 2026*

Terrible. Didn't work.

### ⭐ Would not recommend for a MTX amp.
*by A***H on July 14, 2026*

Bought for my MTX amp . All plugs work but the bass knob was like all or nothing . Tried turning gains down on amp and still didn’t work very well .

### ⭐⭐⭐⭐⭐ Perfect
*by M***A on May 31, 2026*

The universal bass control knob has been a really useful addition to my car audio setup. It gives me quick and easy control over the bass level without having to constantly adjust settings on my amplifier or head unit. Installation was straightforward, especially for someone familiar with basic car audio wiring. Once connected, it worked immediately without any extra configuration. I like that it allows on-the-fly adjustments, which is especially helpful when switching between different types of music or passengers with different preferences. The knob itself feels solid and well-made. It has a smooth turning motion and gives just enough resistance so it doesn’t feel cheap or overly loose. The design is compact, so it doesn’t take up much space on the dashboard or center console. What I appreciate most is the convenience. Being able to quickly dial the bass up or down while driving makes the overall listening experience much more enjoyable and customizable. It really helps fine-tune the sound depending on the song or road conditions. One thing to note is that proper setup is important—if it’s not wired correctly with a compatible amplifier, it may not function as expected. But once installed properly, it works reliably. The only minor downside is that the indicator markings on the knob could be a little more visible in low light, but that’s a small issue overall. Overall, this bass control knob is a simple but effective upgrade for any car audio system. It adds convenience, better control, and a more personalized listening experience.

## Frequently Bought Together

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-06*