I'm a very happy m20d/StageSource owner. Our band uses the m20D along with 4 L2Ms and 1 L3s for small venues. The ease of setup and musician-friendly controls are incredible. Plus the sound rocks as many here have attested.
I'm a guitarist and I use a HD500 into a DT25 with the DT25's direct out going into the m20d.
Between rehearsals I've spent a lot of time trying to match the tone coming through the speakers with what I get out of the DT25. I use the m20d's 20 second recording capability to play a riff, record it and then tweak the m20d's EQ as I listen to it over and over.
What I've noticed is that when I use this feature it sounds like my tone is getting heavily compressed on playback - in other words it sounds thinner and has less high end than when I'm playing real time through the m20d and speakers.
Should I be hearing a difference? If so, does it have to do with whatever format the m20d is using for those 20 second clips?
For reference we play hard rock so all of my patches use a lot of grit.