DPW Design Mog D-2 - 4 Band Distortion
The Mog D-2 is a multi band distortion / overdrive / pre-amp eurorack module. Completely analog, it is designed to behave similar to 4 parallel tube amps, one for each frequency band. Low, Low Mid, High Mid and High.
It takes eurorack levels and works as a guitar or bass pre-amp. You could also connect line level equipment like normal synths in to it to bring them to eurorack levels.
It can be used as everything from a warm pre-amp or mild overdrive to heavy metal distortion with individual drive setting for each band.
The overdrive / distortion bands has originally been selected with bass in mind to target the sweet spots. But it also works really well with synth, guitar or any other media if you want to give it a bit of a vintage tone.
The benefits of the multi band approach is that you don't get a sound that just clogs up the lower mid range when you turn up the distortion. You can still control the low end and not lose the fat bottom of your sound, as clean or distorted as you like. You could decide to let through some of the high end relatively unaffected to still have the snappy transients that heavy distortion otherwise would compress away.
The decision to have two separate mid range bands is so you can sculpt your sound more there, as there is a lot of interesting things happening in the mid range.