They won't sound the same, here's why:
Msallen the link didn't work.
Here's the right link to see a pic of the Graf GM400
If the link dont work, just go to google and type in
www.downunderaudio.com graaf GM 400
I have heard from people within Graaf that the unit (GM 400) sounds remarklably like the GM 200 and GM 20 combined both of which I own (I have the Modena variant of the GM 20). I am in line for the GM 400 when it is available. As you can tell I have somewhat of a love affair with the Graaf amplifiers.
Yes:) my source tells me that there is a new mono-block OTL amplifier coming down the pike as well as some other goodies. I think the mono amps are 200w OTL units. A very special preamp should follow the GM 400.
I agree with you about the GM 200, possibly the best overall amplifier for realism my ears have ever enjoyed :)