The Enigma is definitely more versatile – it has continuous adjustment knobs for parameters where the Q-tron+ only has a switch to choose between 2 presets.

Also, the Enigma has a built-in distortion, and the Q-tron+ does not.

One advantage that the Q-tron+ has is a built-in effects loop that allows you to add an effect in parallel that isn’t filtered, and then combine the 2 signals into a single output.

The Enigma, however, does have a dry out, so you could essentially accomplish the same thing if you can remix the 2 signals later in the chain.

IIRC, both units are designed by Mike Beigel, the same engineer who designed for Mu-Tron. Both are excellent env filters.

Yes, let’s say that you want to run a delay pedal from the Dry Out of the Enigma. This way, the filtered signal will not be heard in the echo repeats, only the dry signal. So now you have 2 signals, one with a filter, and one with an unfiltered echo.

You could now:
1. Run each signal to different amps and have a stereo set-up
2. Run each signal into an amp that has 2 inputs, and mix them in the amp
3. Run each signal into a mixer, like a BOSS LS-2, or an EHX Mini Mixer
4. Run each signal into a pedal that has stereo inputs, like the EHX Cathedral

The Bass MicroSynth is an entirely different kind of filter from either the Qtron or the Enigma. You can definitely do some funky sounds with it, but the filters rise or fall in a linear direction, they don’t rise and fall in a curve. I tend to use the Bass Microsynth to get more Techno or Electronic bass sounds, like an old MOOG.

Between the Qtron+ and the Enigma, I think that both are equally excellent for Funk. I would consider:

1) do you want the effect loop built-in to the pedal?
2) or do you want distortion built-in to the pedal, and continuous adjustment over parameters like decay, attack, and the start and stop of the sweep?