can someone explane to me what this does as if i were a complete idiot?

The ground isolator removes ground noise caused by other components in the power system of your audio devices, it does this by decoupling the amplifier from the audio source directly, wires wrapped around in a transformer allow the audio signal to pass through induction but leave the ground isolated. So any noise on the ground line is not sent to the audio input of the amplifier.

Can I insert this filter between my power amp and preamp in my home audio system to fix the hum problem?

Your hum problem is likely between your preamp and one of its inputs. Disconnect each in turn to see which is the problem. Use this there. It breaks the earth loop. If you put it between the pre and power amp, the hum is already in the audio signal, so it would not be effective at that point.

Will this eliminate the buzz between my record player and receiver?

You can usually eliminate hum between your record player and your phono stage input by grounding the two devices together with a dedicated wire, usually built-in to the record player, which attaches to a stud on the phono preamp or stereo. Hope this helps.

Will this work for a CB radio?

sure, it filters out noise from the power wire

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🎶 Silence the static, amplify the experience!

COMPACT SLEEK - Designed to fit seamlessly into your audio system.
ELIMINATE NOISE - Say goodbye to unwanted hum and buzz!
EASY INSTALLATION - Plug and play for hassle-free setup.
DUAL CHANNEL DESIGN - Perfect for your audio setup with 2-channel output.
PREMIUM CONNECTIVITY - Gold-plated RCA inputs for superior signal quality.

The Boss Audio Ground Loop Isolator and Noise Filter features dual gold-plated RCA inputs and outputs, designed to eliminate unwanted noise in your audio system, ensuring a clean and high-quality sound experience.

Reviews

Z**E

works very well

works very well in eliminating all alternator whine and interference noise for my subwoofer in my car

26.03.2025

A**R

Not fit for purpose

This was not fit for purpose. It increased the humming noise almost damaged my subs.

26.03.2024

C**Y

It worked

To my surprise this thing worked and worked well.

11.05.2025

W**B

Does what it says on the tin

This was required to stop interference on a car head unit I bought, simple to install and did the job.

14.06.2025

B**B

Works

Eliminated weird noises that were occurring while gaming/high load on PC (that sounds like a motorbike/car engine)

8.12.2024

M**R

Plastic

Very light and plastic. Didn't remove my ground loop hum

29.08.2024

B**Z

Boss Audio Noise Filter - no go

I ordered this to try and silence ground loop noise on my Mac speakers. I had done some reading on the net and this seemed like it might be the cure for the loud buzzing I was experiencing with my external speaker setup.Sadly, the net result of installing this filter was that the noise actually significantly INCREASED!Disappointed, I then checked with the seller, caraudiosecurityuk and received a reply stating "If the product has been returned to us and there is no fault found, you are liable for all carriage costs and the time we spend on the unit diagnosing the fault. This charge will be £25.00 (which includes the carriage back)". I didn't fancy taking £25 worth of risk, so I binned it.I've since cured the buzzing by buying a good quality screened audio lead.

7.09.2009

P**T

Works well 👍

Good product, better than most I've tried.

28.09.2024

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Unit Count	1.0 Count
Number of Items	1
Item Weight	4 ounces
Package Quantity	1
Item Dimensions	3.38 x 1.5 x 1.5 inches
Finish Types	Rca
Color	WHITE
Warranty Type	Limited
Connector Type Used on Cable	RCA
Number of Ports	1
Compatible Devices	Amplifier
Specific Uses For Product	personal

Boss Audio Ground Loop Isolator and Noise Filter

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