Jump to content

AA Crossover frequency response

Recommended Posts

I hope this finds itself useful for the folks doing work on Klipsch crossovers. I can simulate other models as well if there is an interest, I did the AA network because it seems to be the most popular for heritage models.


Pictures are in the order like the schematic from top to bottom; 1) woofer 2) mid 3) tweeter


Viewing them in this order you can see how they overlap each other to cover the whole audible frequency range.


This is how I test crossover networks, I place the signal generator output to the input of the crossover, I then put resistive loads on each output and then use a frequency analyzer to look at and compare the frequency response of the networks to make sure they are functioning properly. This gives you a great indication of which filter is having a problem so less time taking the whole board apart and testing each component. I also leave my scope on the outputs in chop mode and compare to the input, sometimes you will see an ugly waveform at the output with high distortion, a good indication a component is toast.







  • Like 1
  • Thanks 1
Link to comment
Share on other sites

  • 2 weeks later...
6 hours ago, JohnA said:

If you will adjust your load impedance, you'll get more accurate results.


Woofer - 6.3 - 6.5

Squawker - 12.5 at 400 Hz

Tweeter - 8 ohms (7.2 DCR)


Your model does show the EQ built into the tweeter filter. 

Yes, and that the AA tweeter filter is near full power at approx 5000hz, not 6000hz.

  • Like 1
Link to comment
Share on other sites

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.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...