BEST STEP UP XFORM. for the DYNA XV 1cart

Why do you need an SUT? The Art has built in Lundhals and has enough gain for the XV1s. Unless you don't want to use them then you gotta spend big bucks for something like a Kondo or an SU-1. Like Pcosta said... the Tron also makes a fine SUT.

Dont like Lundahls something more musical is needed

Now I understand. Try to find a used Expressive Tech SU1 or a Audio note ANs7 or the newer Kondo designs. These are among the best out there no questions about it.