---
product_id: 13734317
title: "JacobsParts AP3054 50W 4-Channel RCA Stereo Ground Loop Isolator"
brand: "jacobsparts"
price: "R863"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Jacobs Parts"
url: https://www.desertcart.co.za/products/13734317-jacobsparts-ap3054-50w-4-channel-rca-stereo-ground-loop-isolator
store_origin: ZA
region: South Africa
---

# Passive filtering Eliminates hum/buzz 4x RCA Male/Female JacobsParts AP3054 50W 4-Channel RCA Stereo Ground Loop Isolator

**Brand:** jacobsparts
**Price:** R863
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate Your Audio Experience!

## Quick Answers

- **What is this?** JacobsParts AP3054 50W 4-Channel RCA Stereo Ground Loop Isolator by jacobsparts
- **How much does it cost?** R863 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/13734317-jacobsparts-ap3054-50w-4-channel-rca-stereo-ground-loop-isolator)

## Best For

- jacobsparts enthusiasts

## Why This Product

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

## Key Features

- • **Plug and Play:** Easy installation with 4x RCA male and female connectors.
- • **Durable Design:** Gold plated connectors ensure longevity and superior connectivity.
- • **Compact Convenience:** A sleek, passive in-line device that fits seamlessly into your setup.
- • **Crystal Clear Sound:** Filters out unwanted DC current in the signal path for pristine audio.
- • **Say Goodbye to Noise:** Eliminates humming and buzzing caused by ground loop issues.

## Overview

The JacobsParts AP3054 is a 50W 4-channel RCA stereo ground loop isolator designed to eliminate unwanted noise in your audio system. With its gold-plated connectors and passive filtering capabilities, it ensures a clean and clear sound, making it an essential tool for any audio enthusiast.

## Description

Eliminate ground loop humming and buzzing noise between an audio source and an amplifier. Place between the head unit and the amp or EQ.

Review: Works very well for grounding issues at amp line level input (RCA input jacks) - I had grounding issues on the input of two amps. Could pull the RCA jacks from the amps, noise would go away. Tried different grounds and grounding points with both power grounds and audio grounds with minimal improvement. Put these isolation transformers in and the background noise completely disappeared. It was one of those wow moments. The audio isolation method really works for the right noise. I saw no capacitors or other components at all, just the audio transformers. The measured transformer coil resistance is 600 ohms in and out (slight rounding here). This method totally disconnects any direct input or wired contact to the amp. Sound is sent to the transformer input coil and induced into the transformers output coil without any direct connection, such as you get with the direct plugin of the RCA's. This method only stops certain types of noise though. If you have a noise that follows the engine revs, I wouldn't think this would help much or at all. I had a substantial background hum most noticeable during music pauses or quiet parts of music. Completely silent now. I have also noticed the signal to the amp and fidelity improved, which I didn't expect. It is quite noticeable though.
Review: Constant humm - With jvc headunit and the stock amp in my Saab it caused a constant humm

## Features

- Connectors: 4x RCA Male, 4x RCA Female
- Eliminates humming and buzzing due to ground loop issues
- Filters out DC current in the signal path
- Passive in-line device
- Gold plated connectors

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00TEED91K |
| Best Sellers Rank | #523,319 in Electronics ( See Top 100 in Electronics ) #3,873 in RCA Cables |
| Brand | JacobsParts |
| Brand Name | JacobsParts |
| Cable Type | Composite |
| Color | Gold |
| Compatible Devices | Amplifier |
| Connector Gender | Male-to-Female |
| Connector Type | RCA |
| Customer Reviews | 3.7 out of 5 stars 315 Reviews |
| Indoor Outdoor Usage | Outdoor |
| Item Shape | Round |
| Manufacturer | JacobsParts Inc. |
| Model | AFILTER-D |
| Number of Items | 1 |
| Number of Pins | 8 |
| Other Special Features of the Product | Low Voltage, Weatherproof |
| Part Number | AFILTER-D |
| Recommended Uses For Product | connecting an audio source to an amplifier to improve audio quality, resolving ground loop issues in audio setups Recommended Uses For Product connecting an audio source to an amplifier to improve audio quality, resolving ground loop issues in audio setups See more |
| Special Feature | Low Voltage, Weatherproof |
| UPC | 845832013930 |
| Unit Count | 1 Count |
| Wattage | 50 watts |

## Images

![JacobsParts AP3054 50W 4-Channel RCA Stereo Ground Loop Isolator - Image 1](https://m.media-amazon.com/images/I/71Gf78UPSRL.jpg)
![JacobsParts AP3054 50W 4-Channel RCA Stereo Ground Loop Isolator - Image 2](https://m.media-amazon.com/images/I/71p0uSHZNSL.jpg)
![JacobsParts AP3054 50W 4-Channel RCA Stereo Ground Loop Isolator - Image 3](https://m.media-amazon.com/images/I/71twTgFFqYL.jpg)
![JacobsParts AP3054 50W 4-Channel RCA Stereo Ground Loop Isolator - Image 4](https://m.media-amazon.com/images/I/612OOkyK6EL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works very well for grounding issues at amp line level input (RCA input jacks)
*by R***N on August 17, 2019*

I had grounding issues on the input of two amps. Could pull the RCA jacks from the amps, noise would go away. Tried different grounds and grounding points with both power grounds and audio grounds with minimal improvement. Put these isolation transformers in and the background noise completely disappeared. It was one of those wow moments. The audio isolation method really works for the right noise. I saw no capacitors or other components at all, just the audio transformers. The measured transformer coil resistance is 600 ohms in and out (slight rounding here). This method totally disconnects any direct input or wired contact to the amp. Sound is sent to the transformer input coil and induced into the transformers output coil without any direct connection, such as you get with the direct plugin of the RCA's. This method only stops certain types of noise though. If you have a noise that follows the engine revs, I wouldn't think this would help much or at all. I had a substantial background hum most noticeable during music pauses or quiet parts of music. Completely silent now. I have also noticed the signal to the amp and fidelity improved, which I didn't expect. It is quite noticeable though.

### ⭐ Constant humm
*by H***Y on February 4, 2020*

With jvc headunit and the stock amp in my Saab it caused a constant humm

### ⭐⭐⭐⭐⭐ No more pesky noise
*by A***R on June 29, 2021*

I have a high end Pioneer unit and a good amp on the trunk of my car. Should sound fantastic, but I had some high pitch noise on the background, always present. Tried better connections to ground on both devices, a battery filter.....nothing worked until I installed this. Thing is my radio has the RCA preamp outs grounded, and the amp on the back has non grounded RCAs, creating a ground loop between devices. This isolator completely separates both devices, and, at least for me, eliminated the noise. If you have a similar setup and issue (high pitched noise on the background while the engine is on), test your RCAs (with a multimeter on continuity test, one lead on any metallic exposed part of the car connected to the battery ground and the other lead on the outer connection of the RCAs). If both your head unit and amp are grounded, this might not work for you. But if you have a non grounded RCA input on your amp, this should work. The leads are not labeled on this isolator, so you'll need to play with the balance and fader controls until you have it right.

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-06-24*