Well I picked up a Mesa 50/50 by chance today so that's my decision made :D
Feel free to comment here as a reference for others seeing as the thread is already started.
I sold my Studio Preamp and 50/50 a few months ago and have come to miss the clean tone so I'm going back.
Before I start scouring ebay can anyone tell me if the MkIV can faithfully reproduce the cleans of the Studio Pre?
Or should I just go find a Studio Pre + 50/50 again and be done with it...