Since I have tested both here.. I can honestly say my preamp is as flat as the MMA6000 and my distortion figures and noise floor are the same, the main difference is the extra gain the 6000 has.. There is no compromise with my preamp being smaller. Its just a simple preamp like the 6000 is.. Nothing fancy.. But I am working on a customers 9100 with microdots he wanted the 3.0 version.. When he gets it back maybe he could do a head to head comp for you guys..
I'd be very interested in these results. I'm looking for a smaller preamp for my DPA 4061's and I have the MMA6000 so I don't really have an interest in getting the DPA's modded to use a different connector... and if I could get one of the UGLY preamps with the microdots and it wouldn't have a significant negative effect on stuff that would be pretty awesome. I love the MMA, but it's freakin bulky and not ideal in certain situations.