Hi Cromio,
All of the V-Synth section patches in the XT are identical. However, the XT comes with VC-1 (D50) and VC-2 Vocal Designer (vocoder etc.) built in. So a V-Synth with the cards would have the same sounds as the XT, assuming OS 2.
Cheers,
Eric
EJ2 BLOG -
http://spaces.msn.com/members/EJ2/
Cheers,
Eric
EJ2 Sounds for You Synth/Workstation
http://www.freewebs.com/ejs2/