scott0527 Posted June 29, 2005 Share Posted June 29, 2005 That "Foam" in the woofer basket thread got the best of me so when I was attaching new grills to my HII's I had to pull out the sqwauker and look inside. The foam in mine is definitely in the "U" shape laid in underneath and around the sides of the woofer. These were made in the spring of 2005. I've also included a picture of the crossover for you crossover nuts. No yellow OR white caps so they must not be that good Quote Link to comment Share on other sites More sharing options...
BS Button Posted June 29, 2005 Share Posted June 29, 2005 Hey, That looks like a plywood motorboard. I thought Klipsch went with MDF? Quote Link to comment Share on other sites More sharing options...
pauln Posted June 30, 2005 Share Posted June 30, 2005 No curves on the tweeter horn? That can't be right..? Quote Link to comment Share on other sites More sharing options...
colterphoto1 Posted June 30, 2005 Share Posted June 30, 2005 xover looks like tinkertoy made it. Quote Link to comment Share on other sites More sharing options...
awsjr Posted June 30, 2005 Share Posted June 30, 2005 I replaced my crossovers...the difference is quite noticable -Al Quote Link to comment Share on other sites More sharing options...
awsjr Posted June 30, 2005 Share Posted June 30, 2005 it fits.... Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted June 30, 2005 Share Posted June 30, 2005 Awsjr, beautiful work! I bet it made a big difference in the overall presentation. Makes the originals look downright sick! Quote Link to comment Share on other sites More sharing options...
Hardhead Posted June 30, 2005 Share Posted June 30, 2005 Is that an ELECTROLYTIC capacitor in the '05 Heresy crossover? I thought people didn't do that any more. Quote Link to comment Share on other sites More sharing options...
HDBRbuilder Posted July 1, 2005 Share Posted July 1, 2005 Yes the current HeresyII has plywood MOTORBOARD, but the veneered panels are MDF. Can you imagine trying to secure a driver with wood screws or bolts to 3/4" MDF motorboard that has been routed to half its thickness to accomodate front-mounting of the horn/woofer flanges? Not exactly the BEST way to go, so plywood is the motorboard medium. Quote Link to comment Share on other sites More sharing options...
edwinr Posted July 1, 2005 Share Posted July 1, 2005 ---------------- On 7/1/2005 12:44:53 PM HDBRbuilder wrote: Yes the current HeresyII has plywood MOTORBOARD... ---------------- Lots of manufacturers use MDF though. Even some fairly expensive brands. Quote Link to comment Share on other sites More sharing options...
Deang Posted July 1, 2005 Share Posted July 1, 2005 Those pics give me chestpains. I don't know of anyone that screws drivers straight into the MDF. http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=260-778 Did my bassbin doors with these: http://www.partsexpress.com/pe/showdetl.cfm?DID=7&PartNumber=081-1082 Quote Link to comment Share on other sites More sharing options...
popbumper Posted July 1, 2005 Share Posted July 1, 2005 Man, that x-over not only dwarfs the original, but really sucks up real estate in the cab. Sure it makes a BIG difference in sound. I am anxious to do my Corns yet, and I also am going to tweak my Academy further using air cores as opposed to iron cores, and a litz wire coil on the tweeter. While I am EXCEEDINGLY happy with the current crossovers I built, IF I can squeeze even one more ounce of performance out of my speaker, I'm willing to pony up and try it... ...it is expensive to play, though....many thanks to the other "nuts" who sent me down this slippery slope.... Chris Quote Link to comment Share on other sites More sharing options...
Deang Posted July 2, 2005 Share Posted July 2, 2005 Stay with the HF inductors you're using because the Litz inductors will radically change the Q of the circuit. I tried it with my RF-7s and it was awful. I had to use a crowbar to separate the horns from my ears. Have you figured out what size air core you have to go with to match the DCR of the steel laminate you're using right now? It's going to be huge, which might work against you if it gets too close to any of the driver magnets. As for the Cornwall, you might consider a better circuit. Quote Link to comment Share on other sites More sharing options...
pauln Posted July 2, 2005 Share Posted July 2, 2005 But did anyone notice the straight horn tweets? Quote Link to comment Share on other sites More sharing options...
popbumper Posted July 2, 2005 Share Posted July 2, 2005 Dean: For "experimentation", I already purchased some Erse "super Q" perfect lay units; the 1mH coil is 3" in diameter, the 2mH coil is 3.375" in diameter. These are large but no so large that they won't fit my boards. Thanks for the call on the litz coils - my only impetus for trying one was Al's Cornwall networks, where they are used on the high end. I understand you build his Corn networks, are you using the litz coils in those as he recommends? Or others? Thanks! Chris Quote Link to comment Share on other sites More sharing options...
scott0527 Posted July 2, 2005 Author Share Posted July 2, 2005 ---------------- On 7/2/2005 5:54:30 AM pauln wrote: But did anyone notice the straight horn tweets? ---------------- As opposed to what? I can take another picture for you all if you want. I can't see the tweets on my Hersey I's since the grills don't come off(and I've never had reason to pull them out from the back. How are these straight tweets different? Quote Link to comment Share on other sites More sharing options...
Marvel Posted July 2, 2005 Share Posted July 2, 2005 Those tweeter horns are exactly like the ones on my HII cabinets. They are not EV horns. The mid driver on the HII has a smaller VC than the one on the H. This also means that the mid driver wouldn't go as low as the Cornwall/Belle/LaScalla/KHorn. Probably means it isn't going to be quite the same timbre as the older models. The tweeter also goes higher I believe. Could partly be the driver and partly the horn. Quote Link to comment Share on other sites More sharing options...
Istari Posted July 2, 2005 Share Posted July 2, 2005 Glad to see you back Andy (HDBR). Its been awhile. Quote Link to comment Share on other sites More sharing options...
Deang Posted July 3, 2005 Share Posted July 3, 2005 I understand you build his Corn networks, are you using the litz coils in those as he recommends? Or others? Thanks! I use Litz inductors, if I don't, he'll fire me. The ALKs, as well as the two he designed for me were modeled out using his filter software. Al will tell you that the loss factor between Litz and standard air cores is substantial. The extremely low loss attribute of Litz is a factor in those designs, and in order for those networks to perform as the models -- Litz inductors have to be used. Be aware that in HF circuits, DCR is not the dominant spec like it is in LF circuits. What dominates at the higher frequencies is the Q of the inductor. When rebuilding networks using standard air cores in the HF section, stay with standard air cores -- and stay as close to the original wire size as possible. This is why I typically don't mess with them in the older networks. Quote Link to comment Share on other sites More sharing options...
popbumper Posted July 3, 2005 Share Posted July 3, 2005 Interesting regarding the appropriate parameters to consider for LF vs. HF. Very informative Dean, thanks! Chris Quote Link to comment Share on other sites More sharing options...
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