Boss Dd-6 Output Mod Help

[mortissimo]

Ok, so the DD-6 gives the option to split the output into two outputs, one dry and one wet for seperate amps. What I want to do is this:

Both outputs are channeled through one amp; whenever dry is being played, dry comes out the amp, but as soon as there is a wet signal, the dry signal is switched off and only the wet signal is allowed through, and as soon as the wet signal stops, the dry is turned on again.

i'm sure this can probably done with simple logic gates, any ideas?

Cheers!

[mortissimo]

Ok maybe I wasn't sure, i'm pretty sure this goes beyond the ability of a simple logic gate. I thought maybe a Boss LS-2 would do it, but i'm not sure. Some sort fo line selector... but.... reversed.... any ideas?