Multiple Pedals With Mono Input and Stereo Outputs

Started by facon, April 08, 2013, 06:19:58 PM

Previous topic - Next topic

facon

Hey guys,

I purchased multiple Moogerfoogers thinking I wouldn't miss some of the stereo functionality that much through my amps. Well, I was wrong. I have the Delay, Cluster-Flux (chorus/flanger) and the phaser. The Cluster-Flux and phaser sound pretty amazing as stereo effects and I prefer to have the delay last in my chain (which does offer an extra 100% wet output). I was wondering if anybody had any suggestions for designing a mixer or blend unit that would, sort of, fake stereo or allow me to get around this.

Would I simply build a mixer that has three inputs and one output? Perhaps two separate mixers to go in between that have two inputs and one output? Since I won't regularly use both chorus and phaser at the same time, should I build an A/B looper switch that only allows me to blend one (chorus or phaser) with the wet delay ouput? I understand that the only way to get a true stereo effect on multiple signals would be to buy two of each pedal after the first, but that would be way too much money. Any suggestions would be appreciated! I have a feeling attempting this may only lead to poor results  :-[

This may have visualize with pedal order:

1) Phaser - Stereo ouputs
2) Cluster-Flux - Stereo outputs
3) Delay - Wet and dry outputs

*I did search for this, but I didn't manage to pull up any search engine results that pertain to this.

ashcat_lt

#1
It's not completely clear what you want to accomplish and why.  You want to maintain the stereo nature of the signal but have delay on both sides, or...?

It might be worth investigating exactly how the stereoness is achieved in those pedals.  Some stereo modulation effects work by putting out the dry signal on one side and the modulated signal on the other.  Some actually do mix the dry with the mod on both outputs, but with the mod signal inverted on one side.  A very few actually have two seperate modulation paths with the actual LFO out of phase between the two sides (so that one goes down while the other goes up.  I'd imagine the Moog pedals use one of the first two methods, but...

Either way if you're talking about trying to mix the two sides of the stereo output, well that should happen automatically when you use just the one "mono" output from the pedal, no?  There wont be any good way to split that back out to stereo.  If you want delay on both sides of the stereo signal you'll need two delay pedals.

Edit -
I guess if the mod pedals use version 1 above, you could run just the wet sides in series all the way through, then build a box which works like version 2.  It would take the wet output from the delay, and mix it with the original dry signal - straight on one side, and with the wet signal inverted on the other.

facon

#2
They label all of the outputs differently on each pedal so it gets a little confusing for me haha. I'll refer to the standard mono output as the MAIN output. the added extra output for stereo will be referred to as the AUX output. The ClusterFlux (chorus/flanger/vibrato) and phaser seem to utilize two different ways of sending the effect in stereo.

The phaser inverts the comb filtering eq on the AUX output and swirls the LFO from the MAIN to the AUX. It creates a really rich 3D swirl that moves back and forth between the two amps The opposing filters create a unique effect that seems clearer.

The ClusterFlux gives you the control on each output's phase. I have it set for the the AUX output to be out of phase from the MAIN to create a stereo widening effect.

The delay has a mix knob for the MAIN output to blend wet/dry, but only sends 100% wet to the AUX output. I'm not a fan of wet/dry rig, so the AUX output is useless to me unless I can blend the AUX signal from the other pedals back in with the wet signal (I realize repeats won't be effected).

This may be what you suggested, but I think the best route may be one mixer. Both AUX outputs from the ClusterFlux and the phaser would be connected straight together with no mix/blend between the two. Another input for the delay's AUX. Then a blend control between the ClusterFlux/phase side and the delay side. Then one output.

Man I wish Moog would just have stereo inputs!!!

Ben N

#3
Since you don't plan to use the modulation units together: Make an active splitter/buffer with a dual opamp, and feed the inputs of both Moogers from that; then you only need to switch the two pairs of outputs--essentially no more complicated than a mono loop switcher. (If you have ground loops, you may need to isolate the grounds, which would require some more switching.)

Then plug the stereo outputs of your switcher into a 2-in 2-out delay, like an Echo Park. Done.
  • SUPPORTER