Elektron Musical Instruments

> I just got a used MD, but the bassdrum sounds very strange to me.

Well, it's just a wild quess, don't know at all how to MD reacts in such a
situation, but it sounds a little bit like a midi-loop ( MD plays note,
sends midi-out, some device echo's it back, MD plays same note again ). So,
if you unplug the midi-cables , does it sound the same ?

Another experiment : copy the machine from  track 1 (BD) to another track
and listen if it sounds the same there.