Elektron Musical Instruments

There was a mention a while back in this list of how much better
the PSU (power supply unit) supplied by Elektron with later units
is than, say, the Radio Shack model that meets Elektron's
specifications.  My (used) unit came with the Radio Shack PSU, and
the 60hz hum is terrible.  I e-mailed Elektron about their PSU but
got no answer.  Can anyone tell me the exact info about the one 
Elektron is now providing so I can get one?  Or, if anyone knows
where they are available, that would be even better.

Many thanks.

 - Roger