Hallo again to all. I need some parts for my Alembic Europa 4str bass.I need the 2 q-switches and the 1 switch.Also I need the 3 collet knobs.Does anyone knows a store in Europe that sells them?

Your best bet is to call Alembic direct. Email comma can take some time to get answered.  
I have always bought parts through talking over the phone. Mica is really helpful you won't get the same level of customer service anywhere
 
slawie