---
product_id: 538972252
title: "Universal Bass Control Knob, 3.5m/11.48ft Bass Volume Knob with Extension Cable for Car Amplifier"
brand: "ehophna"
price: "$51"
currency: NZD
in_stock: true
reviews_count: 8
category: "Ehophna"
url: https://www.desertcart.nz/products/538972252-universal-bass-control-knob-3-5m-11-48ft-bass-volume
store_origin: NZ
region: New Zealand
---

# Pure copper core with power indicator 3-pin crystal connector plug 3.5m/11.48ft extension cable Universal Bass Control Knob, 3.5m/11.48ft Bass Volume Knob with Extension Cable for Car Amplifier

**Brand:** ehophna
**Price:** $51
**Availability:** ✅ In Stock

## Summary

> 🎵 Take control of your bass, and never miss a beat!

## Quick Answers

- **What is this?** Universal Bass Control Knob, 3.5m/11.48ft Bass Volume Knob with Extension Cable for Car Amplifier by ehophna
- **How much does it cost?** $51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/538972252-universal-bass-control-knob-3-5m-11-48ft-bass-volume)

## 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

- • **Plug & Play Setup:** Simple 3-pin crystal connector ensures hassle-free installation in minutes
- • **Seamless Bass Sync:** Eliminates volume mismatch between subwoofer and main board for flawless sound
- • **Lifetime Confidence:** Backed by a lifetime service guarantee—your bass, worry-free
- • **Premium Build Quality:** Durable pure copper core and insulated PVC wiring for long-lasting performance
- • **Extended Reach Control:** 12.7ft cable lets you adjust bass from the driver’s seat with ease

## Overview

The Universal Bass Control Knob features a 3.5m (11.48ft) extension cable with a 3-pin crystal connector, designed to synchronize your car amplifier and subwoofer volume perfectly. Crafted with a pure copper core and insulated PVC wiring, it offers durable, high-quality performance with an easy plug-and-play installation. Ideal for drivers seeking precise bass control from the driver’s seat, it comes with a power indicator and 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: Bass knob - Works great
Review: Not universal as I thought - It says it's Universal, but it didn't work for me. Was very excited thinking it was going to work for me but it didn't. Definitely do your research and see if universal remotes will work with your subwoofer.

## 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 |
| Best Sellers Rank | #1 in Car Amplifier Interconnect Cables |
| Customer Reviews | 3.8 3.8 out of 5 stars (563) |
| Date First Available | May 26, 2023 |
| Item Weight | 2.89 ounces |
| Item model number | 1 |
| Manufacturer | EHOPHNA |
| Product Dimensions | 7.36 x 5.75 x 1.26 inches |

## Product Details

- **Brand:** EHOPHNA
- **Color:** Black
- **Compatible Devices:** Amplifier
- **Item Weight:** 0.08 Kilograms
- **Product Dimensions:** 7.36"D x 5.75"W x 1.26"H

## Images

![Universal Bass Control Knob, 3.5m/11.48ft Bass Volume Knob with Extension Cable for Car Amplifier - Image 1](https://m.media-amazon.com/images/I/71K-3IER+sL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bass knob
*by T***X on January 31, 2026*

Works great

### ⭐ Not universal as I thought
*by N***E on October 2, 2025*

It says it's Universal, but it didn't work for me. Was very excited thinking it was going to work for me but it didn't. Definitely do your research and see if universal remotes will work with your subwoofer.

### ⭐⭐⭐⭐⭐ Universal plug and play
*by B***N on January 6, 2026*

Great product and price point. Universal should work on most amps

## Frequently Bought Together

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-10*