Evilash1996 wrote:I just bought a ground loop isolator from radio shack. Its a piece of s**t and the R audio channel keeps bugging out so I am going to return it. But is it useful for a Turntable system to have one? Or is it useless unless absolutely needed? I didn't hear any difference on my system from having it on or off. I don't hear any humming on the speakers so I am assuming I don't need one but are there any other advantages to having this? Or should I just save my money?
Already noted that this unit is for line-level ground isolation and not appropriate for MV-level audio-signal.
Back in the day, when AR made perhaps the best (inexpensive) TT available, they suggested that with any TT into _their_ electronics, the TT ground wire should be connected to the left RCA ground (outer conductor). And made a cogent argument in their literature that such should obtain for very nearly all applications. Note to you AR owners out there, their factory cables were supplied that way.
That _should_ solve your problems altogether.
Melrose Park, PA