Looking to expand my knowledge!

I'm a 300B SET enthusiast and electronics hobbyist looking to expand my knowledge on circuit design and system integration. I recently bought a calibrated mic and have driven myself nearly insane trying fifty different speaker/listening spot positions and room treatment options! I must have done at least 350 frequency response sweeps in the last month alone. Now I'm working on my first attempt to integrate a subwoofer into my 2ch only system. Impressed with the Rythmik F12 SE's ability to disappear so far. Unfortunately I'm also working on restoring the piano black finish as one of the corners was chipped during shipping. Stabilized the chip with super glue, filled with baking soda cemented with more super glue. Sanded flat and painted above flush. Just waiting for the paint to cure so I can wet sand and polish it to match. So far so good.