That is very nice Julian, I am guessing its sound equipment?
I will be in touch with you some time as in the near future I would like to build a valve amp thought you could do a nice panel for it.
Bit sketchy on the design at the minute... So many projects so little time! 
Its a digital drum machine, but a little more unusual than most. It can go from the classic warm TR drum hits, through to much more atmospheric digital scrapes and noise.
Here is a youtube vid (not mine) -
https://www.youtube.com/watch?v=CfNpMgSISsIAll sound is from the one machine, just with effects processing, however, that's more musical than it can be.
Ive cut panels for people's outboard kit before (neve clones etc) but, for some reason, never amps. Ive thought before that i should try and get in on that game, as there are plenty of DIY hifi builders, but its just never happened.