lucky5115 Posted January 9, 2018 Share Posted January 9, 2018 Just started to build new crossovers for my Cornscalas. Some parts just laid out on board for placement purposes. After much research.. I narrowed it down to these caps which have all been matched to values and pairs. The board is 9x16.. Caps are the size of grenades.. Erse Super Q inductors ClarityCap CSA low Mundorf Supreme mid/high Jupiter VT mid/high 'Ill post as things progress. 2 beer job so far.. Ron Quote Link to comment Share on other sites More sharing options...
Schu Posted January 9, 2018 Share Posted January 9, 2018 Like your salad bar... mix/match Quote Link to comment Share on other sites More sharing options...
Deang Posted January 9, 2018 Share Posted January 9, 2018 No more beers! Nice parts - I don't recognize the circuit- what is it? Quote Link to comment Share on other sites More sharing options...
mopardave Posted January 9, 2018 Share Posted January 9, 2018 Nice parts, but sure does look complicated. Thats beond my level for sure. Quote Link to comment Share on other sites More sharing options...
jjptkd Posted January 9, 2018 Share Posted January 9, 2018 10 hours ago, lucky5115 said: Just started to build new crossovers for my Cornscalas. 'Ill post as things progress. 2 beer job so far.. Ron Very nice, looks like some high end stuff there! What drivers will you be using in the Cornscalas and at what crossover points if you don't mind sharing? Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 9, 2018 Share Posted January 9, 2018 The parallel caps are because you couldn't find the right value in the brand you wanted? Quote Link to comment Share on other sites More sharing options...
lucky5115 Posted January 10, 2018 Author Share Posted January 10, 2018 11 hours ago, jjptkd said: Very nice, looks like some high end stuff there! What drivers will you be using in the Cornscalas and at what crossover points if you don't mind sharing? Bob's cast frame woofers, Dave's Cornwall Fastrac horn with K-51-V and Bob's CT120-DE120, Cutover 400-500 / 5800-6k. Quote Link to comment Share on other sites More sharing options...
consistent Posted January 10, 2018 Share Posted January 10, 2018 Looks like a 1st order Buttwerworth...no Autoformer? Quote Link to comment Share on other sites More sharing options...
lucky5115 Posted January 10, 2018 Author Share Posted January 10, 2018 17 hours ago, CECAA850 said: The parallel caps are because you couldn't find the right value in the brand you wanted? Correct.. parallel... Quote Link to comment Share on other sites More sharing options...
lucky5115 Posted February 7, 2018 Author Share Posted February 7, 2018 Almost done. prelim testing ex results. Don't think I'll get the corns sounding any better after many years of trial n' error. Board is 9 x 16. Quote Link to comment Share on other sites More sharing options...
Deang Posted February 8, 2018 Share Posted February 8, 2018 You should consider soldering in a fixed l-pad using Mills resistors. Quote Link to comment Share on other sites More sharing options...
lucky5115 Posted February 8, 2018 Author Share Posted February 8, 2018 Dean, a good idea and I'm gonna look into that. BTW, I left all the cap leads original length and worked around it in case changes were needed or if I part it out in the future. I bent the gold plated spade connector mounts into L shape so the leads just push right in, easy solder install and removal, no more hassle of having to wind leads on a mount peg. Ran into a odd issue during testing..the fix... clean the taps on the autoformer. All the taps on the AF were covered with that enamelish coating used on the windings. Whether the AF was sprayed or dipped, dunno, it was hard to detect as it's clearish. To the plain eye the taps looked fine however..The symptom was a flat, kinda like speaking through a towel sound. Do quality parts make a difference(especially caps)?.. oh hell yes! And another..was it worth using a Erse superQ and better quality cap on the woof filter? oh hell yes! The bass will give you a nice tight punch to the chest. Thought I'd share info. more to follow.. Isn't this what part of the forum is about? To share and help each other out\\ Done rambling.. time for chow. Quote Link to comment Share on other sites More sharing options...
lucky5115 Posted February 18, 2018 Author Share Posted February 18, 2018 Sounds really good, dialed in. Thinking about mounting externally due to size. Next up, build a tube amp. Quote Link to comment Share on other sites More sharing options...
Alexander Posted February 19, 2018 Share Posted February 19, 2018 1 hour ago, lucky5115 said: Sounds really good, dialed in. Thinking about mounting externally due to size. Next up, build a tube amp. Wow, that is a big ol boy isn't it. Looks nice! Quote Link to comment Share on other sites More sharing options...
lucky5115 Posted February 19, 2018 Author Share Posted February 19, 2018 Indeed. 16 x 9. It'll fit inside NP. Just have to figure how I want to external mount. Give me more cabinet air volume inside w/o xover and minimal vibration. ..will post pics as I go. 1 Quote Link to comment Share on other sites More sharing options...
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