bonedoctor Posted February 1, 2014 Share Posted February 1, 2014 Got a really nice pair of 1974 Heresy speakers recently. Nice pie logos, perfect grills, sound nice. I took off the back to look inside. Probably the last guy to see inside was the guy who put the back panel on in '74. So I check out the crossover and it's a type B style like my mint '72 Cornwalls. Was this the commonly used cross over? Quote Link to comment Share on other sites More sharing options...
mungkiman Posted February 1, 2014 Share Posted February 1, 2014 Thought it was type E, but I've been wrong a lot lately... Quote Link to comment Share on other sites More sharing options...
Malcolm Posted February 1, 2014 Share Posted February 1, 2014 (edited) Type C was used in Heresys with alnico woofer and K700 horn from the mid sixties into the mid seventies. Type D came around the time of the advent of the ferrite woofers, quickly replaced by Type E which simply incorporated a phase change. The E2 came toward the end of the run when the K55V was replaced. I don't think the Type B was ever meant to be used officially. But some unexpected combinations seem to have come out of Klipsch due to parts shortages or special requests. Edited February 1, 2014 by Malcolm Quote Link to comment Share on other sites More sharing options...
Budman Posted February 1, 2014 Share Posted February 1, 2014 we want pictures. the letter E can look like a B did i mention we want pictures 72 mint cornwalls Quote Link to comment Share on other sites More sharing options...
Axz Hout Posted February 1, 2014 Share Posted February 1, 2014 x Quote Link to comment Share on other sites More sharing options...
Budman Posted February 1, 2014 Share Posted February 1, 2014 B Quote Link to comment Share on other sites More sharing options...
bonedoctor Posted February 1, 2014 Author Share Posted February 1, 2014 Yes, I thought it was commonly an E crossover, too, but the one speaker I opened is clearly labelled 'B'. It has a K-22E woofer, a shorter K-22V mid and a K-77 tweeter. Everything appears to be original and I don't think anyone had been inside the cabinet before. The caps on the odd B crossover aren't upright like those shown in the pics above. Rather, they are fat silver boxes laid flat and are shaped like a Klondike bar, mostly block shaped. The crossovers in the 72 Cornwalls are B with smaller block shaped caps laying flat. Yes, I'll post some pics soon. The 72 Cornwalls are sweet. Oiled walnut with the pie logos and brown grill cloth. They are the vertical models, too, with mint labels and the orientation labels. They also have what appear to be factory risers. I always enjoy peeking inside these things. The 72s got new Crites Crossovers and CT125tweeters since the fragile originals were both out. Quote Link to comment Share on other sites More sharing options...
Budman Posted February 1, 2014 Share Posted February 1, 2014 the inside of the cabs will look brand new each and everytime you open them. they are sealed and no dirt should ever enter. Quote Link to comment Share on other sites More sharing options...
bonedoctor Posted February 1, 2014 Author Share Posted February 1, 2014 Okay, so now I had to open the other Heresy cabinet. Very interesting. It has the same speaker components, but a Type C crossover! So I looked at the type B from the other Heresy and compared to the 72 Cornwalls. One cap on the B from the Heresy has three connections, with two bridged together with a small jumper wire. The Cornwall B also has the cap with three connections, but with three sep wires. And I just noticed the serial numbers are very slightly nonconsectutive. One is 9M683 and one is 9M686. Gotta love these old things! Quote Link to comment Share on other sites More sharing options...
Budman Posted February 1, 2014 Share Posted February 1, 2014 (edited) i think my 69's have C networks Edited February 1, 2014 by Budman Quote Link to comment Share on other sites More sharing options...
Fjd Posted February 1, 2014 Share Posted February 1, 2014 Was this the commonly used cross over? The Type E has two 2 uf capacitors - the Type B has one 4 uf and one 2 uf capacitors with different autotransformer connections. To bonedoctor, is there enough print where you can read the values on the capacitors? See mach-1's post of the capacitor values above. If you are not familiar, the "uf" is probably "MFD" on capacitors from 1974. Could be a 'tag' that was accidently marked "B" but the components may still be values of an "E" or even the "D" referenced by Malcolm. Yes, I thought it was commonly an E crossover, too, but the one speaker I opened is clearly labelled 'B'. The caps on the odd B crossover aren't upright like those shown in the pics above. Rather, they are fat silver boxes laid flat and are shaped like a Klondike bar, mostly block shaped. The crossovers in the 72 Cornwalls are B with smaller block shaped caps laying flat. I'm attaching pictures from a set of "D" networks that came from consecutive serial numbered Heresy speakers that have capacitors similar to what you have described. One has two Aerovox capacitors of a value of 2 MFD (uF) each while the other has four capacitors (two pair of two 1 MFD (uF) capacitors in parallel for the 2 MFD required value). The 1 MFD capacitors look like the Aerovox, but are stamped Micamold Radio. Quote Link to comment Share on other sites More sharing options...
bonedoctor Posted February 1, 2014 Author Share Posted February 1, 2014 Okay, I get some pics posted next week. I did remember one was micamold radio. One cap is turned away from me and I can't see the stamping. What's weird is that the have clearly different caps from each other and the Heresy B caps look like the Cornwall's B caps, but with one having a jumper wire. Quote Link to comment Share on other sites More sharing options...
Axz Hout Posted February 1, 2014 Share Posted February 1, 2014 x Quote Link to comment Share on other sites More sharing options...
minermark Posted February 1, 2014 Share Posted February 1, 2014 Iv got a Klipsch speaker sitting in the wifes garage, I do not know just exactly what type it is but I know its some kind of heresy, came out of a burned up church sometime back, as soon as I clean up my bench here, im going to take a look, will post pics asap. Quote Link to comment Share on other sites More sharing options...
Deang Posted February 1, 2014 Share Posted February 1, 2014 (edited) If they are Type Bs, there will be practically no bass and the mids and highs will be screaming at you. For the most part completely unlistenable. So, how do they sound? Edited February 1, 2014 by DeanG Quote Link to comment Share on other sites More sharing options...
bonedoctor Posted February 1, 2014 Author Share Posted February 1, 2014 They seem to sound okay. I haven't had them running together for a bit. Been messing around with the Cornwalls. Was playing around and had one channel hooked up to the Heresy with the C crossover and the other channel on an RF-7. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.