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Posts posted by Deang

  1. 25 minutes ago, Klipschguy said:

    The K55 is specified to have frequency response to 75Hz


    Where did you read that?


    It has a plane wave tube response down to 110Hz. The tube provides a resistive load.


    As long as you don't drop the driver or bang it into something, the magnetic charge will be fine. I would change both diaphragms, and since you've done this before, you probably know to clean out the magnetic gap.

  2. The only in-network plot I have of the K-77-M with an AA is a Klipsch anechoic plot that I can't really post. Those peaks aren't there.


    There are some out of network plots that are easy to find with google - Al did most of them. No peaks.


    It's also odd that you would be "driven out of the room", and your initial impression that it "sounded terrible".

  3. 8 hours ago, geoff. said:

    The AL-2 looks to be, for all intents and purposes, an AL-3 with the exception of depleting the stock of the formerly ubiquitous, but now out of favour, 2133s (2.5mH) coils by using them in series to form the 5mH squawker bandpass. 





    Check out the AK vs. the AK-3


    When I figured this one out I started pushing AK-2 users backwards instead of forwards. They only have to change two parts and never have to open the door to the woofer chamber. Those big film caps are fine, and you run into more trouble and hassle by breaking the airtight seal. 

  4. People do change their mind about things, and I’m sure PK was no exception. There is no growth without adjusting your position as you are presented with new information. 

    I have a hardcopy around here somewhere from Klipsch Engineering on the K-401. If I can find it I will screenshot it.

  5. You’re not allowed to measure stuff anymore, lol. 

    I was talking to JEM the other day, who mentioned that the AA was designed to work with the Alnico K- 77, and doesn’t sound particularly good with the EV 77-M. It was an interesting discussion. With that said, I don’t think I have ever seen a plot like that before.

    • Like 2
  6. Yeah, replace them now and you don’t have to think about anymore. Henry is right, they are probably not “bad”, but they are certainly on their way out. 

    Jim did a nice a job on that page. We speak often and we are very much aligned.

    • Like 1
  7. I misread something earlier that just made me want to bow out. I thought he said he got a reading from his RF-7 high pass with the straps removed, which really confused me. 

    I don’t like internet troubleshooting, especially when there’s no problem!

    • Like 1
  8. You can also get them at https://reconingspeakers.com/products-page/klipsch-k-33-e-woofer-121501/


    As for the network, just think of it as preventive maintenance. Even if the capacitors are mostly okay, and many are - they are aging out. Best just to get it over with. This makes more sense then measuring every 40 year old capacitor and trying to decide if you should change it or not.


    The upgrade path is to go to the AL-3, but since you are selling these  ...

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