Has any body used an isolated y splitter? I figured I would try at least one to see how it works. End goal is to run two amps with one guitar and cut back on ground loop issues and noise when one amp is in stand-by and the other is not. I have already toasted one stereo pedal when I tried mixing a tube amp and solid state amp. I will not do that again... Amps survived but the pedal did not. Also when attempting to do the same with two tube amps, the amp that gets taken out of standby makes a huge noise until the other amp is out of standby. I would run the amps like this more often but the noise and ground issues are not very desirable. I ordered a Lehle P-split isolated Y splitter and hope this will resolve the problem. I was looking for more of a passive solution without a buffer and power supply requirement. Hopefully it will do the job. What are you using to accomplish bi-amp set up for a stereo rig?