Using a loop pedal as an A/B switch into 2 channel tube amp

[Seedouble]

Hi there, wasn't really sure where to put this as it is a kind of 2-part question.

Can I use my loop pedal as an A/B switch to select either of the 2 different preamp channels in this bass-amp of mine?

The bass amp is a Jansen Bass 75, which is somewhat like a Fender Bassman. There are 2 inputs per channel on my amp also. (see below)


Now, I understand that with these amps you can link the channels to activate both preamp sections, but I'm not sure I want to do this, I just want to switch between 2 different preamp settings on the amp.

Then again, I understand one channel might be low gain, one might be high-gain, so I may have this all wrong. Or is each channel the same (at least on the fenders), but 1 of the 2 inputs is low gain?

So yeah, can I use my loop pedal like this (below) to act as a preamp channel selector?


Cheers

[Seedouble]

Just to clarify on my diagram, the magenta line is plugged into the "out" on the loop pedal.

[JimmyM]

if your loop pedal has ab capabilities, absolutely you can. no idea what the channels do in your amp, though. you're on your own figuring that out.

[Seedouble]

As I understand it, the loop pedal I have is about as basic as you can get. It's either straight through (main in > main out), or when engaged, the circuit changes it's route to go out the "send", then back through the "return" input, then through the "main out".

I believe I can use it as an A/B switch because I've had problems in the past where I had a dead patch cable between the "send" and "return" and when I engaged it, there was no signal. Would this not be the same with other loop pedals?

[icks]

you can do this without problem. That's what I do with my Boss LS-2 and my Ampeg SVT.