Juggernaut1101

Hi Everyone, First of all, I'd like to thank you guys for all of the information you have posted on this site. Without all of this, I would probably be screwed, and not able to find enough information on how to make a Stax amp. I have been wanting a sizable upgrade from my pair of HD 595s and after getting the Fidelio X2s which I wasn't too impressed with, have decided to go all the way and get the STAX SR-407 . I decided that I would also like to take this as a learning exercise and build my own amp. I've built a Millet SS Hybrid before, and know my way around electronics a bit, although probably not at these voltages. I have been doing some research over this past week trying to decide which AMP to build. The most attractive options I have found have been the SRX and KGST. Unfortunately, it seems that no one has any boards built that I can find. I was wondering if anyone had any other suggestions. I was looking for a cheaper amp ($300 or so), and preferably one that I could just buy a board for, which would make my life quite a bit easier. There seem to be many smart people on this board, so I was wondering if anyone had material I could go through for more of the theory behind amplification too, beyond just simple op-amp circuits. I've started looking at BJT cascodes. I have a mechanical engineering degree, so I am not completely at a loss when it comes to the technical side of things. If you have any advice, or suggestions for me, feel free to give them!