Mini Ground Loop Noise Isolator Gold Coating RCA Connectors Aluminum Shell Noise Filter for car and Home Using in Different situations (WDISO-A010-RCA)

It works and eliminated the noise but it cancels a lot of your bass. I had it on a five channel MB Quartz amp that I was using for highs and sub but I ended up putting a separate amp in for the sub because of the loss of bass after installing the noise suppressor. Everything sounded great including the sub without the suppressor but for a bass head I had to change. Fortunately I had everything already so no extra money spent. I’m very pleased with it overall

This in line noise suppressor left me extremely pleased. I don't normally even leave reviews but I have to say, this works so well for such a low price that I'm so pleasantly surprised and on top of that it's such an easy install. For car audio installation take note of this small piece of advice, for my 07 Lexus LS460L this filter from the aftermarket head units' RCA's going back to your amplifier causing the noise, this filter completely killed all the engine noise just like that. Great a product that does what they say it does without needing to purchase any additional parts or anything. 👍🏽👍🏽

They worked excellent when I used them. I ordered two and both dropped everything under around 600hz. I couldn’t push enough through them to give the speakers a full sound.

Installed on 2009 Harley Ultra with amp. I was picking up noise from the fuel pump before. This cured it. I did have to make some bass and treble adjustments but it now sounds more clear than ever!

This definitely does not work like it is supposed to. I tried it on a number of different inputs and outputs, and it only succeeds in introducing a high-pitched squeal into the line. Maybe mine is defective. My other passive inline filters and ground loop isolators all reduce hum and noise to a certain degree, although none of them are perfect. But this is the only one I've tried that actually makes things worse. This was all tested on a home system, so maybe something like a car audio system might be more compatible.

It’s does what it says it does but it also filtered out quite a bit of frequency particularly low frequencies from the music. I’ll give it 5 stars for it eliminating noise but 1 star for compromising the sound quality.

Got this to stop hum in sub output. It seems to help the hum but cut the output almost in half. I would not recommend this if you don't have enough output gain to make up for the loss. Just happened that my unit only has 2.7v output.

This analog device uses left and right analog RCA (phono) type plugs only. The device has permanent input/output wires, with one set of males plugs and one set of female.I checked the effect this device has on the audio itself. The graph shows the result with the device attached between a DAC and an amp. The red line is without the isolator. I repeated both measurements multiple times and they were consistent. So there is some volume drop, mostly in frequencies below 120Hz (low and sub bass). There do not seem to be any abrupt frequency changes. This filtered result may be a common solution with "audio" isolators. In an auto, where a lot of noise can enter the audio, it may be acceptable to sacrifice extreme bass to reduce extreme noise.The device seems well made, but permanent wires are always a concern. This device is probably best used in an auto. For a home setup first try an AC power isolator. That cannot affect the audio directly.This company makes a number of isolators, they are not just a reseller.

El producto es el mejor de este tipo en Amazon, el punto es que quita totalmente el ruido pero también los bajos o grabes del sonido, solo se escuchan los agudos !!! eso a mi no me funciona !!! sobre todo en equipos caros y de vanguardia en sonido de casa Marantz !!!