#1
I know that i can run the send in the fx loop from my marshall vs100 head to the input of another power amp. can i run it into the return of the fx loop of my randall 300w head?
#2
Yes. You can run the preamp of the VS100 into the FX return on the Randall.
Framus Cobra
Marshall JCM 900
peavey 5150

Mesa 4x12
#3
and that will use the preamp of the marshall and the power amp of the randall?