By
mikem
Mon Mar 28, 2022 8:32 pm
For me the CV outs was the deciding factor why I got my MPC One, and it's working great.
I have the K2 as well, so a little caveat. Generally it works nicely. However, the K2 oscillator uses Hertz/Volt for oscillator pitch (since that's what the original MS20 used), while Eurorack (and the MPC) uses Volt/Octave. So the K2 won't track pitch correctly, when you're trying to control the oscillator with pitch/gate CV. Not really a problem, just use MIDI and it works fine. This is not a problem with the MPC, you'll run into this when you try to integrate the K2 with other Eurorack gear as well. I wish Behringer would have been a little bit less historically accurate, but it is what it is. Still a really really nice synth.
If you simply want to control filter CV or anything else other than oscillator pitch it works fine, though, and, as I said, via MIDI it's no problem anyway. Usually I send notes via MIDI and automate via CV, and it works fine. You can always patch the oscillator output from the K2 to any module, it also has a trigger out, so you can sequence the K2 via MIDI and get the gate for other modules as well. It works, it's just a little bit more patching than sending gate from the MPC directly to the module.
It's really hard to recommend anything, it depends a lot on what you want to do. If you want to do use the rack as another synthesizer, the Behringer 100 Series could be a great start. I think Behringer and Doepfer modules are good starting points, since they're comparatively cheap and still sound excellent, especially for bread and butter stuff. Doepfer has some great analog filters (I love the A-106-6 SEM filter especially, such a nice sound). If you haven't already, look up Vactrol LPGs, I think those are great additions to a standard setup, since they sound a bit different than the standard ADSR/VCF combo. Especially for industrial techno I think you'd like those ping-sounds that you get with those.
I'd skip digital effects modules for now, you can feed the signal from the modules back into the MPC and apply effects there, so no need for that yet, unless you want to modulate the effects via LFOs and stuff. I'd also skip any sequencing modules for now too, since you'll need another oscillator than the K2 (again, due to the different CV format).
Don't forget about a way to get your sound out. With some modules I get a great signal when I plug them directly into the mixer, with others it's really crappy (lots of noise). There are dedicated output modules to fix that, but I personally found that if I go from my modules into a patchbay and from there into the mixer the audio is good. So if you find that your module sounds bad, it's probably not the module, and there are ways of fixing that.
Another small tip: look for either stackable cables or those Eurorack cable splitters (I got a bunch of those), much better than wasting rack space in with mults.