K-77 Tweeter Diaphragms

[antiquekid3]

Does anyone have any of these to sell? Everywhere I have looked, they are backordered. I would prefer to get two, but if you just have one, I'd take it. I just got a pair of Klipsch Heresy speakers and one of the tweeters was shot.

If you also happen to have a reconing kit for the K-22EF, that'd be great too!

Thanks!

Kyle

[Ty_Bower]

Who's that guy who sells titanium diaphragms and upgrade crossover kits for the Klipsch series? Was it Crites?

http://www.critesspeakers.com/klipsch_tweeters.html

[battradio]

If that fails , i have an extra working K77 , and a couple T35's.

[antiquekid3]

Yeah, Crites is out of the diaphragms. I want to replace the diaphragms with the new ones with beryllium-copper leads. I don't think the titanium diaphragms will fit in the K-77 tweeter.

Mark, how much would you sell your K-77 for?

Thanks guys!

Kyle

[battradio]

The one i have is alnico with the round magnet , is your alnico or ferrite .will dig it out and send a photo .

[antiquekid3]

Yeah, mine has a round Alnico magnet. I would love to find just the diaphragm, but if you can give me a good price, I might take it! :-)

Thanks!

Kyle

[jeff.hazlett@sbcglobal.ne]

I replaced my Heresy K-77s with Crites CT125 and then moded the crossover from 6000k down to 4500K WOW what a difference. I can send you the schematic if your interested.

I did a similar mod to my Khorns as well. I couldn't be happier with the resulting sound on the upper/mids, very smooth

Jeff

[spamer]

I saw these on eBay but I wasn't brave enough to try them.

http://cgi.ebay.com/Klipsch-Tweeter-Aft ... 255c2a1640

Search for K77, The seller is midwestspeaker.

I would be interested in seeing your mod Jeff if you want to share. What did you notice in the change?

Steve

[jeff.hazlett@sbcglobal.ne]

Remember you can only do this mod if you have replaced the K77's. I use the CT-125"s.

Move the midrange down one tap on the autotransformer that is, from tap 2 to tap 1. That would decrease it's output by 3db. Then to get the crossover point back right, you would need to change the 2uf cap going to the autotransformer to a 1 uF cap.

*I found the lowering on the squawker DB output to be unnecessary after lowering the crossover from 6000K to 4500K. You be the judge. *

To lower the cross over to 4500K:
Put a 160uH inductor in series with the squawker to roll it off. And a 4uF cap for the tweeter to lower it's crossover frequency.

I found this mod to give a much smother midrange. I also found on certain recordings the squawker would almost "honk" at higher midrange vocals, that is GONE!! I got this mod from Bob Crites and I thank him very much.

Jeff

[burnedfingers]

Did anyone doing this modification happen to run pink noise and hook up an analyzer up to see the outcome? Modifications like this aren't tweeked by ear in my opinion.

[rodman101]

Jeff,

I would like the schematic for this 4500K change. I would like to know where you got the inductors too. I can only find this value in a few places and some are too expensive and the cheapest comes from Holland.

Thanks

[battradio]

http://www.parts-express.com/speaker-building.cfm
http://www.parts-express.com/air-core-inductors.cfm
A good place to buy inductors .

Mark

[rodman101]

Mark,

Thanks for the links, parts on are on the way!!!

Rod