hi
I recently looked into Blacet, since quite a few people seem to talk about their Time Machine delay, this led me to look up a bunch of other modular synth companies and it seems to me like these are great effects. I was wondering, is it possible/practical to use a multi piece modular synthesizer for a guitar? would it be difficult to setup? would it sound good or bad? also, I hear modular synths are monophonic (one note at a time), could I configure a bunch of different modules so I get a polyphonic sound?
thanks
“I was wondering, is it possible/practical to use a multi piece modular synthesizer for a guitar?”
Absolutely! Lots of folks do. The only issue is level matching. Modular synths tend to use much hotter levels than stomp boxes. Modules like the Blacet I/O and the Cyndustries Anything Module address this issue.
“would it be difficult to setup?”
If you buy assembled modules, no.
"would it sound good or bad? "
That part’s up to you…
“I hear modular synths are monophonic …”
Yes and no. If you’re using audio modules like delay, ring mod, etc. to process guitar, this is not an issue.
Smaller modular synths (like my own Blacet system) can generate as many individual notes as you have sound sources. In other words, 3 VCOs can generate 3 seperate notes, but this isn’t true polyphony.
To get true polyphony, like with a piano or organ, would take a truly massive modular setup, with essentially a full monosynth for each voice (VCO, VCA, EG, VCF, etc.) and some means to control it. This is kind of missing the point of what a modular is good at, though.
I hope that helps!
Mike Fun
This is a tad impractical advice, since they are so $$$ but an Arp 2600 makes a very nice add-on to a guitar. It has a pre-amplifier on it that you can put your guitar into, and the pre-amp is hardwired to an envelope follower. From there you’ve got a filter, ring mod, and tons of other stuff. But they are now over 30 years old, expensive, hard to find, and sometimes unreliable due to age and condition.
Try a Sherman filterbank 2, it excels at insane guitar processing
that Filterbank is pretty damn cool, and reasonably priced too! that’s definately going to be on my effects hit list. asw for the ARP, well I’m too poor for a vintage pre-amp, and I can’t say I’d trust it to be reliable 
cheers