FM9 2 amps-2 cabs modulation sound?

[loudguitars]

Hi, Noob nere..... I am using 2 amps and 2 cab with 2 IRs each and with all effects off, I am getting a phasey or modulated sound? Is it cab alignment? Single amp w no issues. Two amps it sounds like the chorus is on but not sweeping?? Any help appreciated!

 

[Master of Nothing]

I believe you are correct about the alignment. I think the recommendations I have read on this forum say to send both amps to a single cab. That’s what I do when using two amps.

 

[unix-guy]

Do you have other things like a Drive block on one path and not on the other?

 

[GitarKnut]

Exactly, e.g. a Drive block in one of the paths will cause phase issues regardless if it is in "Bypass mode" or "Active mode". I assume the same will be the case for blocks after the Cab block but before the paths are merged. I have not tested but assume that "CPU-intensive" blocks (like Drive) might be more likely to cause phase issues than e.g. a Filter block.

 

[loudguitars]

I removed a second cab ( I previously had one for each amp) and this is now the scene. Phasing issue are much better now.