Getting more into speaker building. Currently working on two Paul Carmody kits, Overnight Sensation and Amiga. I'm trying out some better caps and better hook up wire. I ordered some Obbligato caps for my second set of OS's, they are supposed to be high end at a low price. They're coming in from the Philippines, I want to see if they sound better that the stock Dayton caps. Got some Audyn Plus caps coming in for the Amigas and wondering about bypass caps. Also interested in room treatment and measuring speakers using REW. I have a Topping LA-90 Discreet running in stereo and and RME ADI-2 DAC (I think the most adjustable DAC one can buy) which I currently send music to through USB from my Macbook. Furutech is now my cable brand and I like low mass connector like GR Research tube connectors, KLE and Furutech 867 binding posts; Audioquest BFA or Furutech bananas(not low mass but locking). I want to build and entire speaker from Baltic Birch, maybe another Paul Carmody design - I'm liking the Virage (tower version), but for now I'm having fun working on what I have. Also, I'm 65 and have hearing aids, so that's another link in the listening chain that I'm always messing with, I'd love to know what other hearing aid wearers do.