Currently Being ModeratedAug 10, 2011 9:03 AM (in response to jeffsimpson1)RE: Want to set up 2 amps with mono fx send and return on both?
The best way for you to set this is up is using the first part of your diagram:
Guitar -> ABY -> A - front input on Carvin, B front input of Marshall
Carvin FX Send -> M13 Left Input, M13 Left Output -> Carvin FX Return
Marshall FX Send -> M13 Right Input, M13 Right Output -> Marshall FX Return
Keep in mind, in this set up, the signal of each amp will be feeding the M13 and any effects will be sent out to both amps' power section at once. For example, if you are using the clean amp and apply a delay, the clean repeats will be heard out of both amps. Same goes when using the distorted amp with any effects, the distorted signal+effect will be sent out to both amps at once.
Currently Being ModeratedAug 10, 2011 9:28 AM (in response to jeffsimpson1)RE: Want to set up 2 amps with mono fx send and return on both?
In order to have it setup the way you want it to you will need a to connect your guitar to AB-Y selector box. I would suggest something like this:
This will allow you to split your guitars output into the inputs of both of your amps and give you the option to toggle between the two are have them both on.
You will then need to use two other AB-Y type boxes:
-One to connect both of the FX loop send from the Carvin and the Marshall and sum it down to one output which you would connect to the input of the M13.
-Another one to connect the output of the M13 and split it back into two so that it can back to the each one of the amps FX returns.
This will enable to use the M13 in mono for each amp, one at a time, or at the same time.