Help with Klipsch k77 Tweeters and Different Volumes

[Lost Cause]

So, I picked up a pair of Klipsch K77 tweeters, for a yet-to-be defined project. Price was right. Or, at least seemed so.

I hooked up both tweeters to a small 15W amp, just to test 'em out. The volume from one was significantly louder than the other. The louder one seemed distorted a bit, too.

I ordered some replacement diaphragms from Simply Speakers to freshen them up.

Opened up the tweeters and, turns out, the gaskets were missing from both. So, I made up new ones with some very thin foam and a few tries with an X-Acto. Also, one of the voice coils was tight, seems the magnet was knocked and misaligned. Fixed that as well, which I thought would solve the main issue.

Once soldered in the new diagrams I buttoned them all back up. They both sounded much better, with the distortion gone. But one is still significantly less loud than the other one.

They measure resistance at 6.2 ohms and 6.3 ohms respectively, so should be spot-on.

Any ideas on what could be causing the issue and how to solve it? Obviously, I'm not an electronics expert and still new to this site, so please be gentile.

Thanks in advance!

 

[toxcrusadr]

Is the same one less loud even with the new diaphragm?

Try swapping diaphragms? The only thing I can think of besides electrical connections and diaphragms is the magnet. If one is not strong because it's cracked or demagnetized somehow, that may be the cause.

If I was replacing diaphragms I'd get the titaniums from Crites. They do an amazing thing on these tweeter horns.

PS I'm definitely a Gentile.

 

[Lost Cause]

Is the same one less loud even with the new diaphragm?

Try swapping diaphragms? The only thing I can think of besides electrical connections and diaphragms is the magnet. If one is not strong because it's cracked or demagnetized somehow, that may be the cause.

It is the same one. I was thinking it was a magnet issue, but have no idea how one could re-magnitize a driver. I'd try swapping diaphragms, but since they're soldered in, I'd likely ruin the diaphrams.

If I was replacing diaphragms I'd get the titaniums from Crites.

I have his 15" woofers. Top notch stuff. I just didn't want to pay more for new diaphragms than I paid for the actual driver.

PS I'm definitely a Gentile.

Mazel Tov! My spelling is horrible.

 

[toxcrusadr]

You know, I'd ask this question of Bob Crites. Send him an email and explain all the details or link him to this thread. I doubt there is a random problem with a brand new diaphragm that just happens to be installed in the same tweeter there was a problem with before. Possible, but not likely. Bob might have heard of or seen this problem before and have some thoughts on it.

You may end up having to replace the driver. If it was that cheap it shouldn't be a big deal - unless that was a screaming bargain you'll never see again.

 

[Justgotohm]

You know, I'd ask this question of Bob Crites. Send him an email and explain all the details or link him to this thread. I doubt there is a random problem with a brand new diaphragm that just happens to be installed in the same tweeter there was a problem with before. Possible, but not likely. Bob might have heard of or seen this problem before and have some thoughts on it.

You may end up having to replace the driver. If it was that cheap it shouldn't be a big deal - unless that was a screaming bargain you'll never see again.

Bob passed away recently.

 

[bruno80918]

Yes , Bob is gone. RIP

I believe his son is running the business.

 

[Lost Cause]

That's terrible news. I know he was very active on the forums and helping folks out with various issues. He'll be missed.

 

[toxcrusadr]

Holy crap!