I want to build a wet-dry-wet mixer box for my guitar pedalboard setup, but i'm trying to workout the best way to build this circuit (which OP amps etc would be best to use).. so any help/suggestions would be appreciated

This is to allow the use of 3x separate guitar amplifiers/speakers, so that "dry" signal is sent to the centre speaker and "wet" (with parallel mixed effects) send to the Left and Right amps/speakers.

I need this to be a small/simple box that can be put on a small guitar pedalboard and powered from a 9v supply.
Should have the following Inputs/Outputs & features:

1x Dry (mono) line level signal input from effects processor -> 4x Buffered (mono) Outputs
(Outputs: 1x to connect to guitar amp input (dry amp) - 3x outputs to connect to inputs of 3x "wet" effect processors)

3x Wet (stereo) signal inputs from effect units -> Mixer (doesnt need level controls for each input) -> Left / Right buffered "wet" Output

In addition to this it would need to have a "wet/dry" mix pot to control the mix of the wet/dry outputs in the main Left/Right output (or alternatively separate level controls for the dry and wet levels in the stereo output)

Seems to me there are 2 separate parts to this circuit -
1. buffer circuit to split dry input to 4x outputs (do each of these outputs require a separate buffer or can one buffer drive 4 ouputs?)
2. Mixer circuit to mix the stereo inputs for the wet effects.

Rather than posting random circuits that i've found on the internet that I think might work for parts of this, I thought id ask those here with more knowledge of these things for advise.. Any suggestions would be appreciated!

 

There is a huge selection of musical instrument add-on stuff at a website nearby. It includes product circuits and other stuff. That site is "Schematicsforfree" and it can be trusted to not be demanding payments, unlike many other sites.

 

There is a huge selection of musical instrument add-on stuff at a website nearby. It includes product circuits and other stuff. That site is "Schematicsforfree" and it can be trusted to not be demanding payments, unlike many other sites.

Thanks MisterBill! I have a look on there and see what i can find.. i think i have already figured out how im going to do this though.. just need to test a few of the circuit ideas once some of the components ive ordered arrive ;-)

 

it is always interesting to see how others have done things, especially the companies that do the high end equipment, where low cost is last on the list of requirements.