bliss53 Posted June 23, 2009 Author Share Posted June 23, 2009 The prior owner got them new and he was not the type modify them. When I got them the tweeters were blown. The condition of the back and the pristine screw heads made me think that I was the first one to crack them open. Quote Link to comment Share on other sites More sharing options...
HudsonValleyNoah Posted June 23, 2009 Share Posted June 23, 2009 ...When I got them the tweeters were blown. Might be another clue in this mystry... Quote Link to comment Share on other sites More sharing options...
bliss53 Posted June 24, 2009 Author Share Posted June 24, 2009 I need some help. I have talked to Noah and I have determined that my cornwalls IIs may have been 1.5 that recieved what ever parts were on the shelf. See the picture. I think I have a k77 and a K57 with a B3 crossover. I changed the caps in the B3 with Bob Crites supplied parts. My question is is there a compromise to using this combination with gothovers new horns in this project? What if anything would you change? Bump for some help with my driver question. Quote Link to comment Share on other sites More sharing options...
BEC Posted June 24, 2009 Share Posted June 24, 2009 Does your driver screw on to the horn or is it bolted on? I think the horn you are planning to use is a screw on. Bob Crites Quote Link to comment Share on other sites More sharing options...
Guest David H Posted June 24, 2009 Share Posted June 24, 2009 Does your driver screw on to the horn or is it bolted on? I think the horn you are planning to use is a screw on. Bob Crites Bob, the Fastrac Horns are bolt on or thread on, just requires a simple adapter. Bliss, give me a call. I left a pm for you days ago. Bob, thanks for the quick turnaround on my order. DH Quote Link to comment Share on other sites More sharing options...
dkalsi Posted June 24, 2009 Share Posted June 24, 2009 If it means anything to you - I would like to add that out of the 4 Cornwalls I have had (including Cornwall IIs), my Cornwall 1.5 (i.e., the one with B-3 networks) are the best sounding Cornwalls I have ever heard. Quote Link to comment Share on other sites More sharing options...
HudsonValleyNoah Posted June 24, 2009 Share Posted June 24, 2009 Hi Pete, If it were me, I would go back to B crossovers with K-55's or try to find a pair of K-52's to go with your B-3's.. Personally, I like the sound of the K-52 w/B3 a little more than the K-55 w/B... But it's close. One should work as well with the new horns as the other (with that adapter.) I would like to hear other opinions. Noah Quote Link to comment Share on other sites More sharing options...
BEC Posted June 24, 2009 Share Posted June 24, 2009 Does your driver screw on to the horn or is it bolted on? I think the horn you are planning to use is a screw on. Bob Crites Bob, the Fastrac Horns are bolt on or thread on, just requires a simple adapter. Bliss, give me a call. I left a pm for you days ago. Bob, thanks for the quick turnaround on my order. DH Let's see if I can show what I am concerned about supposing the K-57 is a bolt on. Looking at the picture below, you see the K-52H which is the Heppner driver that Klipsch took and turned into the K-57K. Notice the metal phase plug and it's shape. The "nose" (part with the screw threads) fits over that metal phase plug and has the right taper inside to match the phase plug. Notice also that the diaphragm is separate from the phase plug. Bob Crites Quote Link to comment Share on other sites More sharing options...
BEC Posted June 24, 2009 Share Posted June 24, 2009 Now, Klipsch took that basic design and had a new diaphargm manufactured that incorporated the phase plug as a part of the plastic housing of the diaphagm. They also molded the horn to allow the driver with diaphragm and phase plug to bolt on the new horn. So any part the metal "nose" may have played would now have to be performed by the new plastic horn. That is why I am not sure you could use this driver with a different horn unless you had some of the original screw on type "nose" pieces. Bob Crites Quote Link to comment Share on other sites More sharing options...
Guest David H Posted June 25, 2009 Share Posted June 25, 2009 I think I have a solution to the problem Pete, contact me when you have a chance. In the mean time I ran some curves on the K-52H and the Fastrac. The K52H is decent driver. Quote Link to comment Share on other sites More sharing options...
bliss53 Posted June 25, 2009 Author Share Posted June 25, 2009 My K57 has 4 screws that go through the plastic horn's mouth flange and into the driver. This is a bolt on arrangement, not a screw on. I will take some pictures tonight. Quote Link to comment Share on other sites More sharing options...
bliss53 Posted June 25, 2009 Author Share Posted June 25, 2009 Thanks for the review. Do recall what tweeters your cornwall 1.5s had? Edit: forgot to hit the quote button for dkalsi's post If it means anything to you - I would like to add that out of the 4 Cornwalls I have had (including Cornwall IIs), my Cornwall 1.5 (i.e., the one with B-3 networks) are the best sounding Cornwalls I have ever heard. Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted June 25, 2009 Share Posted June 25, 2009 Those should be K-77M's (square magnet) Quote Link to comment Share on other sites More sharing options...
bliss53 Posted June 25, 2009 Author Share Posted June 25, 2009 Can K55s be used with the B3 network? Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted June 25, 2009 Share Posted June 25, 2009 That network was modified due to the different midrange driver. It would work but it most likely won't sound right, should be easy enough to turn it back into a B network since it is a simple network with a 4uf & 2uf cap, coil, autoformer and terminal strip. Quote Link to comment Share on other sites More sharing options...
HudsonValleyNoah Posted June 25, 2009 Share Posted June 25, 2009 bliss - PM'd Quote Link to comment Share on other sites More sharing options...
bliss53 Posted June 29, 2009 Author Share Posted June 29, 2009 Got horns from Gothover. Cut motor boards and made grill blanks. Quote Link to comment Share on other sites More sharing options...
bliss53 Posted June 29, 2009 Author Share Posted June 29, 2009 Made adapters for K57 drivers. Quote Link to comment Share on other sites More sharing options...
bliss53 Posted June 29, 2009 Author Share Posted June 29, 2009 Used some rubber gasket material on either side of the adapter. Quote Link to comment Share on other sites More sharing options...
bliss53 Posted June 29, 2009 Author Share Posted June 29, 2009 Also made an acrylic turntable dust cover for a friends birthday. Picture is with my turntable. Busy weekend. Quote Link to comment Share on other sites More sharing options...
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