Hellow Slow
That first speaker turned out quite nice. My fatal flaw was wave guiding the Accuton Diamond tweeter (BD25). It wasn't until I spoke with Earl Geddes that I realized wave guiding is more for domed tweeters. The flaw was something I heard, but a fellow audiophile loved them. They are in a good home, and appreciated.
The first speaker was also quite large. My wife wouldn't allow them anywhere but the basement, hence the redesign.
A few minor quibbles by me;
1) When I originally designed the C173 with the BD25, I chose 2500Hz as a crossover point. At loud volumes I could hear the tweeters 'stressing'. Considering their cost, I didn't want to ruin them.
2) When I raised the crossover point to 2800Hz, the tweeters where happy, but I now heard something in the midrange. I suspect your C30 will crossover much more smoothly with the C173. At that point I decided to switch to the slightly smaller C158. My crossover point is just above 3000Hz.
3) The original didn't use Duelund Cast Pio's for the tweeter caps. With this new speaker there is room in the crossover compartment for the larger size caps. Please Please Please consider the Duelunds for your tweeters. On the Diamond Accuton's they are heads and shoulders above my original Mundorf Silver/Oil.
4) This final point should be left out. I cannot listen to CD's. This was true of the first DIY speaker, and even more so using Duelund Caps with this new speaker. SACD is very good (EMM Labs CDSA se), but vinyl is truly spectacular. Unfortunately my album collection shrunk with this new speaker. Audiophile recordings are to die for, and so so recordings not so good. It's as if you can hear the recording mistakes/flaws.
Starting to hate this hobby,............, maybe I should set up my mid fi system at the cottage?.
