another blender mixer - ?

[blackieNYC]

I have a new 4 ch looper, and I want one loop to be delays, reverbs, pitch shifters, and digital stuff. I have a mixer that can blend in 2 fx channels. The send/returns each have all the bells and whistles and switches - LP filter,HP filter, polarity inverter, level pot, TB stomp, LED, etc.
I've always wanted to use a mixer for delays, pitch shifters, reverbs, maybe a phaser, in an FX send/return configuration rather than an insert. In other words, I'd like the dry signal to go thru untouched, and the fx to be 100% wet.  this way you maximize the affected sound, then mix in just a little of it.  You get less noise back from the effect, and your dry signal goes unbuffered instead of passing thru the buffers of several, or a multitude, of effects pedals. 
With my current mixer I can do that to some extent, but two channels isn't enough. Inevitably, I will want to use two in one loop - and that doesn't work in terms of blending. Say the first pedal, a pitch shifter,  blends in a little 2-octaves-up.  Then you have a delay after it.  If you are 100% wet, you get a weak little reverb based on the 2 octave up.  So you need to change the setting, dial back the 100% wet to 25% or whatever, and that becomes your dry, full signal feeding the delay. And you shut off your dry channel. I don't want to do that.
   the mixer i have is just too much, so I want to see how minimal I can go.  Kind of bare bones. I want to kick in my digital effects (at 100% wet) plus dry,
It would need pots for every return channel, because again, it's all wet and no dry.

Do you think this would do?


With my current mixer I can do this to some extent, but two channels isn't enough. Inevitably, I will want to use two in one loop - and that doesn't work in terms of blending. Say the first pedal, a pitch shifter,  blends in a little 2-octaves-up.  Then you have a delay after it.  If you are 100% wet, you get a weak little reverb based on the 2 octave up.  So you need to change the setting, dial back the 100% wet to 25% or whatever, and that becomes your dry, full signal feeding the delay. And you shut off your dry channel. I don't want to do that.
I also am hoping to skip the polarity reverser because these are all delayed effects, pitch shifters too, at 100% wet.  Just pots, and a dry kill switch in case I want only the shifted pitch, and otherwise maybe the return level pots would be fairly set-n-forget.

[blackieNYC]

This would go nicely with Mark Hammer's remote on/off mod.  The sends and returns, and the remote on control lines could terminate in a 25pin Dsub connector at one end.

[PRR]

Why so many opamps?? Do you work for TI?

One opamp can drive a dozen pedals at least. Do add some Kohms on each so a shorted cable does not kill the signal on the other 11 outputs.

[blackieNYC]

There we go!  thanks Paul.  Parts count plummets.
Every "splitter pedal schematic" google image has one active device for each split.