Mimiq Doubler
Ok I guess im just giving up on TC Pedals! This is the second pedal that does the exact same thing and I think its because they wont work well with high gain amps when in stereo mode. Both the Mimiq and the Ditto x2 has done the same thing. The mimiq hums so loud its unusable. We have changed power supply and all cables and nothing changes. In fact if you unplug them they still feedback the exact same with the outputs still connected. If i remove them from other pedals i have 0 feedback so that shows it is the tc pedals doing this. I run a stereo rig with a high gain Marshall and a Randall satan aswell as a 5150 III stealth sometimes. And it does the same with all 3 no matter the configuration. I tried the looper first and sent it back and the new one did the same thing so i returned it. So im betting this one is the same way
Source: http://forum.tcelectronic.com