radek tymecki wrote:Can sb tell me what are the diffrences?
I would say judge for yourselve and start counting the controls:
X-605:
My 1978 X-705:
X-705 V2.0:
Note the 4 tweak knobs:

Well... I think they are tweak knobs... I believe for the rythm...
So, yes, a lot of difference like no rythm section....
Besides jarre only used the X-705/(X-)707 for the last rhumba, band in the rain and MPSM part 4.
If you want a X-705 be sure to ask for the production year first!! The sound differs slightly from year to year.
Here you can buy a
broken X-705 for 100EUR. You just need to drive to .nl......
J.
PS: I'm away for the next 5 days...so I can't answer any questions for the time being....