Merging Stereo signal with J48 issues, help needed.

[Jonahlane]

Im trying to merge two signals coming from my pedalboard, one with my VT bass deluxe, modded DS1, tuner and compressor, with my Micro synth. When the synth is off, I just use the extra channel as a clean blend. I normally have two XLR outputs and feed those to the board, but this upcoming weekend I will only be able to have one send, and would really like to have just one blended XLR output. When I plug the 1/4 in out of the VT into the "thru" of the J48, it works fine until I engage different pedals, in which it creates a weird whine sound, just one steady pitch, that changes when I use different pedal configurations. It goes away once I begin to play, but is super annoying.


Yes, I have the merge button pressed down. Yes my power is isolated (Voodoo lab PP2+) and Yes I have the ground loop engaged.


Anyone have any idea what the issue could be and/or how to solve it? I haven't seen any similar issues on here.

 

[Jonahlane]

Imagine a DS1 between the tuner and the VT. I split the signal with a morley ABY under my board, directly after my compressor.

 

[Nephilymbass]

Im trying to merge two signals coming from my pedalboard, one with my VT bass deluxe, modded DS1, tuner and compressor, with my Micro synth. When the synth is off, I just use the extra channel as a clean blend. I normally have two XLR outputs and feed those to the board, but this upcoming weekend I will only be able to have one send, and would really like to have just one blended XLR output. When I plug the 1/4 in out of the VT into the "thru" of the J48, it works fine until I engage different pedals, in which it creates a weird whine sound, just one steady pitch, that changes when I use different pedal configurations. It goes away once I begin to play, but is super annoying.


Yes, I have the merge button pressed down. Yes my power is isolated (Voodoo lab PP2+) and Yes I have the ground loop engaged.


Anyone have any idea what the issue could be and/or how to solve it? I haven't seen any similar issues on here.

I use the dry out and effects return on my sans amp RBI with the effects loop on 50/50 in order to run my Darkglass b7k ultra parallel with the RBI. Does the vt deluxe have the same features?