I bought this box to cut a ground loop in my guitar rig.
The problem was that when taking the output from my AMT Pangaea cab IR loader back to my Boss MS-3 for stereo effects created a big ground loop, and the distortion channels in my preamp would create oscillation and were totally unusable.
The Palmer was a perfect solution, now I can run a balanced cable from the AMT Pangaea back to my pedalboard into the Palmer, and a short patch cable to the MS-3.
The Palmer is built like a tank and it sounds great with no degradation in sound quality.