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When using home or car audio systems, it is inevitable to encounter the buzzing noise known as "electrical noise" coming from the speakers. This noise can greatly affect your user experience and make it unpleasant.
In fact, the "electrical noise" we hear does not refer to a single type of noise, but rather different types of noises with different causes and solutions.
The first common type of "electrical noise" is the hissing sound coming from the speakers.
This "electrical noise", characterized as a hissing sound from speakers, is a common issue referred to as the background noise in audio systems. This noise is intrinsically linked to the quality of the audio equipment. High-quality systems typically produce less of this noise, while cheaper, lower-quality systems may emit a more noticeable hissing sound.
This background noise becomes more pronounced as the volume level increases. As you turn up the volume, the background noise also gets amplified, making it more distinct and potentially disruptive to the listening experience.
A common misconception about this issue is that it can be mitigated through adjustments to the audio system's settings. However, this is not the case. The background noise is inherent to the system's quality, so In dealing with this issue, options are limited. Users can either tolerate the noise or replace the audio system equipment.
The second common type of "electrical noise" is the unstable noise that fluctuates in volume or occurs intermittently.
This noise is mainly caused by electromagnetic interference during signal transmission, which means there is poor shielding.
There are two main reasons for this situation. First, it could be due to poor quality signal cables with inadequate shielding density, resulting in interference and noise. In this case, replacing the cables with higher quality ones is required. Second, it could be caused by high-impedance unbalanced signals, such as those from electric guitars or electric basses. When these signals are transmitted over a distance longer than 10 meters, they are prone to interference and noise.
To address this, a DI box should be added on the end closer to the signal source to convert the high-impedance unbalanced signal to a low-impedance balanced signal before connecting it to the mixing console.
The third most common type of "electrical noise" is a strong humming noise known as Hum noise.
This noise occurs when the grounding points of two audio devices are not at the same point.
Due to the difference in wiring resistance, the noise enters the audio devices through the ground wire, causing interference and noise. We call this common ground noise. This noise often appears in car audio systems, home speakers, radio stations, and recording studios.
To solve this problem, you can connect the FMUSER audio ground isolation device between the audio devices.
The principle of the audio ground isolation device is to use an isolation transformer to cut off the direct connection of the ground wire in the audio line, thus avoiding the occurrence of common ground noise.
Eliminate Ground Loop Noise with the FMUSER Ground Isolator
Say goodbye to annoying ground loop noise with the FMUSER Common Ground Isolator! This powerful little device wipes out ground loop hum while preserving the rich, deep bass and volume of your music. Enjoy crystal-clear sound the way it was meant to be heard, with zero distortion and maximum impact.
Connection Method
RCA to RCA
Aux to Aux
RCA to Aux
Aux to RCA
Joseph Young
2025-08-23 18:07:44
To say I was skeptical is an understatement. I plugged this in to the RCA input coming into my PS Audio AMP and the 60Hz hum/Buzz is completely gone. I mean completely gone. I replaced electrical outlets, replaced cable and still have major noise. I installed this FMUSER RCA Audio Ground Loop Isolator and my music system now is dead silent even when I turn the volume up and there is no music playing. Great device. Get one whenever they are back in stock! So happy here!
Customer
2025-07-17 10:23:07
No hay diferencia entre usarlo o no no sirve lo voy a regresar
Sean Wiesner
2025-07-08 14:45:30
Paid a little more for this unit than others here on Amazon with mixed reviews and did not disappoint, eliminated the hum and solid build quality. Highly recommend!
Issa Edah-Tally
2025-03-31 16:45:27
It did not make any difference so I returned it.
Eric Gampu
2025-03-22 13:37:14
Yes! It took out the distortion noise out! Great unit, I can use my Karaoke without any disruptions.
Jun Wang
2025-01-31 16:10:19
I purchased this for the humming noise in my car stereo. The installation is straightforward, but I could hardly tell the big difference between pre and post the installation. It might only happen to me.
Alex D.
2025-01-15 15:26:33
Did not work while another device did
Bill the Engineer
2024-11-29 15:11:54
Used this on a church PA system, solved the problem.
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