Tommy
I have an XD3 and I bought a Roland 2020 for extra sounds. This has the same sound set as the 5050 but you edit it using a PC rather than the front panel.
There is not an abundance of Accordians on there and what there is doesn't come close to the ones on the Ketron. I would check out to see that there is an expansion card with the sounds you want on before you go down that route.
I only bought it for one reason and that is to put in the SX003 card which is 64Mbytes of a sampled piano. This gives me a great piano sound but it is a pain to gig with (sorry UD) as it means I have to take along a mixer plus additional leads as I already use the input on the XD3 for vocals via a TC Helicon unit.
I would be interested to see if the new card from Ketron features a different piano sound as I find the existing one a bit too klunky in the higher registers.
Unfortunately I live in a very remote part of the world and I can't find anyone in the UK who stocks their stuff.
Hey Nick - Where did you get your's from? What sounds do you get and what are they like?
I would appreciate a response from anyone who has seen/heard/tried/bought one.
Regards to all
KFingers (Keith)