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I bought this to handle earth noise in my home studio - unbalanced RCA cables between a Scarlett Solo and KRK monitors - and it worked flawlessly. One of the best purchases I have made on Ebay, does exactly what it's meant to, at a more than reasonable price.
Verified purchase: Yes | Condition: New
In respect of noise elimination, it does the job perfectly. An annoying hum and a whistle was completely eliminated by this. BUT... For my HiFi it was apparently 'transparent' in general, but it clearly had a roll-off at lower frequencies. Bass was definitely attenuated by this device. I believe it is because of impedance issues. Bass was lighter as though I had turned the bass control down. This was escpecially noticed on organ and synthesiser music. The frequency response gives a clue: this device starts at 40hz, but the ones I had been using for my other HiFi had a frequency response that went down to 20hz. That is clearly significant. Also, the DC resistance of the windings was much lower on this device: it was ~150 ohms, whereas my other isolators were much higher: 350ohms. The others had an impedance of 20kohms; but the impedance for these devices is not stated.Read full review
Verified purchase: Yes | Condition: New
Product works perfectly I no longer have hiss or hum from my equipment
Verified purchase: Yes | Condition: New
I have a problem with humming or earth noise via my equalizer,this product did not solve it..had one before years ago,was just the same,thought by now they would of improved 😔 ..
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
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