Review on PAC SNI 135 Ground Loop Isolator by Aaron Gonzales

The claim that this filter has near perfect frequency response at 20Hz is a complete lie. After testing it firsthand, I could immediately tell that something was wrong with my music as soon as I plugged it in. As soon as I played a song with a significant amount of bass, I could find that the bass was completely gone; What was once a booming and resonant drumbeat has become flat and featureless. I gave it 2 stars because it really blocks out all the unwanted noise. but only at the expense of most of your bass. I would only recommend this to people with very cheap systems or no need for bass.