Just a quick reply, Electron uses Switching Mode Power Suply.
Check if it is possible to change to linear VDC12 volt like a Sboost mk2 12/13v
In The netherland you can get it for less then 300,-
But please dubble check!
Ps. You might want to experiment with turning in the amp screen volume to 0 and then modulate the VCA!drive.
This powersupply is even better and is a bit expensive but maybe you can also experiment with your mixer?
Good luck and let us know the improvements Please