---
product_id: 690062108
title: "Universal Bass Control Knob, Bass Volume Knob with Extension Cable for Car Amplifier"
brand: "ehophna"
price: "5.69 DT"
currency: TND
in_stock: false
reviews_count: 5
url: https://www.desertcart.tn/products/690062108-universal-bass-control-knob-bass-volume-knob-with-extension-cable
store_origin: TN
region: Tunisia
---

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

**Brand:** ehophna
**Price:** 5.69 DT
**Availability:** ❌ Out of Stock

## Summary

> 🎵 Dial in your bass, own the vibe—control that commands attention!

## 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?** 5.69 DT with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/690062108-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 wiring with insulated PVC ensures long-term reliability
- • **Plug & Play Setup:** Effortless installation with a simple 3-pin crystal connector—no tech headaches
- • **Seamless Bass Sync:** Eliminates volume mismatch between subwoofer & main board for flawless sound
- • **Lifetime Confidence:** Backed by a lifetime service guarantee—your bass, worry-free
- • **Extended Reach Control:** 12.7-foot cable lets you position the knob exactly where you want it

## Overview

The Universal Bass Control Knob features a 12.7-foot extension cable and a 3-pin crystal connector for easy installation, designed to perfectly synchronize your car amplifier’s subwoofer volume with the main control board. Crafted with pure copper core wiring and insulated PVC, it ensures durability and consistent performance, backed by a lifetime service guarantee.

## 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 |
| Best Sellers Rank | 147,183 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 1,126 in Bass Guitar Parts |
| Box Contents | 1*Bass Control Knob |
| Brand | EHOPHNA |
| Brand Name | EHOPHNA |
| Colour | Black |
| Compatible Devices | Amplifier |
| Compatible devices | Amplifier |
| Connector Type | 3.5mm Jack |
| Customer Reviews | 3.7 out of 5 stars 755 Reviews |
| Item Dimensions D x W x H | 18.7D x 14.6W x 3.2H centimetres |
| Item Weight | 0.08 Kilograms |
| Item weight | 0.08 Kilograms |
| Manufacturer | Generic |
| Manufacturer Part Number | 1 |
| Model Name | Universal |
| Model Number | 1 |
| Model name | Universal |
| Number of Items | 1 |
| Output Channel Quantity | 1 |
| Power Source | Corded Electric |
| Product dimensions | 18.7D x 14.6W x 3.2H centimetres |
| UPC | 720230857662 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** EHOPHNA
- **Colour:** Black
- **Compatible devices:** Amplifier
- **Item weight:** 0.08 Kilograms
- **Product dimensions:** 18.7D x 14.6W x 3.2H centimetres

## 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)
![Universal Bass Control Knob, Bass Volume Knob with Extension Cable for Car Amplifier - Image 2](https://m.media-amazon.com/images/I/61ZYiD0lVoL.jpg)
![Universal Bass Control Knob, Bass Volume Knob with Extension Cable for Car Amplifier - Image 3](https://m.media-amazon.com/images/I/71Fkvby+qNL.jpg)
![Universal Bass Control Knob, Bass Volume Knob with Extension Cable for Car Amplifier - Image 4](https://m.media-amazon.com/images/I/61dr9oUFKLL.jpg)
![Universal Bass Control Knob, Bass Volume Knob with Extension Cable for Car Amplifier - Image 5](https://m.media-amazon.com/images/I/61DihEtcVsL.jpg)

## Customer Reviews

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

Terrible. Didn't work.

### ⭐ Would not recommend for a MTX amp.
*by A***H on 14 July 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 31 May 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

- Universal Bass Control Knob, 3.5m/11.48ft Bass Volume Knob with Extension Cable for Car Amplifier
- BOSS Audio Systems KIT2 8 Gauge Complete Car Amplifier Installation Wiring Kit with Power Cables, Ground Cables, Turn-On Wire, Speaker Wire, Terminals
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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-10-07*