So with the new MP upgrade the moogerfooger synth is nearing completion. but my question is if we use the freqbox as an oscillator, what is the best way to mix them. my thinking was freq 1 osc out → freq 2 audio in (set mix at 50%) freq 2 audio out → freq 3 audio in (set mix to50%).etc… this would allow for multiple freqs to be hard sync’d or to be keyboard controlled and tuned seperately, i presume (midi keyboard → MP midi in, MPcv out → CP mult → mult → freq ins)
has anyone ever run more than one freq in series? does it degrade the overall output? or would it be better to just run them into an audio mixer?
also i know there was a way to make the ringmod sort of a vca, has anyone had a chance to run the MP’s new envelopes into the ringmods carrier in?
I just got my 2nd Freqbox a few days ago and am running them in parallel with a boss LS-2 Line Selector(pedal sized mixer with volume control for each line). My setup is a bit different, but I’ll relay what I know and hopefully some of it will be relative to what you’re looking for.
I play bass and am using octavers set 100% wet and playing further up the neck as my ‘dry bass tone’, which sounds much ‘synthier’ and the Freqbox track the octave signal better than dry in low frequencies; I haven’t tried running them into each other, but there are output differences when using different input signals of the same frequency range, and I prefer the Freqbox output tone when hardsync’d to a sine-y octaver, than to dry bass guitar or squarish gated fuzz.
I’m going to experiment with controlling one with MIDI and one hard synched for different tuning options, but mainly I must use them Hard synched and in parallel so I can give them different octave/tuned inputs, and filter them separately (to prevent phasing issues among other things, though some of the phasing sounds pretty good!). One side has an analog suboctave and the Lowpass, and the other side a HOG and multi-mode MS-20 filter clone; the digital HOG has an array of octaves and harmonies and attack/decay envelopes, and with the exp/cv input I can detune, pitch bend, and hold/gliss among other things, all options that Im finding very useful in this configuration!
I’ve only been using the new Envelopes with filters so far, but I do use the Ringmod as a volume pedal and tremolo with the MP201 into the Carrier in, so I feel pretty confident in saying that it will work just fine as a faux VCA.. I’d try it myself, but my rig in completely torn apart and in the middle of arrangement/reconstruction for the next day or two. I thought my setup was pretty well complete, and then this 2nd Freqbox comes and shakes everything up! 
Lol thanks for the help. That sounds like a really fun pedal setup to play around with
Reading your post again, I didn’t notice that your hard sync scenario has the sync starting with the Osc Out of the 1st Freqbox, instead of the Audio out; Im not exactly what the difference is between the two methods so maybe no help at all, but what I was trying to get at is; at least when hardsynching from the audio out of one into the audio in of another, there is some signal degradation(not horrible, but worth noting), and the limited frequency range from being Hard Synched causes signal degradation when approaching those limits. When they are hard synched to each other, you can’t really tune them differently from each other- the oscillators can start in different frequency ranges, but no static detuning because oscillator keeps trying to reset to the pitch of the input signal---- I do not know for sure if this all applies when Hard Synching from the Osc Out, but I would imagine Hard Sync imposes the same limitations regardless. (please correct me if I’m wrong!)
Using a MIDI keyboard with the MP201’s CV’s and the Hard Sync Off, into a mixer offers a lot more versatility and better sound quality, this has been my limited experience anyway-
The reason I suguested sending the osc out from the 1st freq box is because there is nothing plugged in the audio in (well actually my plan would be to have my korg poly800 as the midi controller. But this senario the audio will not be processed) to control pitch or to trigger it since it will be control with only a midi keyboard. And running them in series like I mentioned, would allow to play with them with hard sync on or off then they can be tuned individually. Keep in mind I am just mapping this out in my head so it may not be right. I hope that I made it a little less confusing, I was really tired when I wrote the first entry