Jump to content

Heresy 1 Crossover Question


Giarc60

Recommended Posts

Reversing polarity can be done by reversing the wires to a driver at the terminal strip on the balancing network. This inverts the movement of that driver by 180 degrees and changes the interaction of that driver’s output with other drivers in the crossover region.

  • Like 1
Link to comment
Share on other sites

  • Moderators
3 hours ago, Giarc60 said:

What exactly is reversing polarity mean ?

On the E, as compared to the D, the + and - wires are reversed on the tweeter (and apparently the Squawker horn as well).

 

so to match a D to an E you switch the positive to the negative, and negative to positive on the tweeter on the D to make it an E. You do the same on the Squawker horn.

 

This may have been done previously by someone else, so to verify you will want to post a few photos of the D and E along with the wires running up to the two drivers and folks will be able to tell you.

Link to comment
Share on other sites

13 hours ago, wuzzzer said:

What’s that black capacitor or whatever that is connected to the back side of the terminal block?  I’ve never seen that on any of the E networks I’ve had.  Is that because it has the K-52H versus the K-55V?

 

That cap is across the woofer and is what makes it an E-2 (along with the inductor change). Don't know why the crossover is mismarked.

Link to comment
Share on other sites

14 minutes ago, jcn3 said:

 

That cap is across the woofer and is what makes it an E-2 (along with the inductor change). Don't know why the crossover is mismarked.

 

I've always assumed that as they were transitioning to the E2 there were still a lot of E labels on hand.  My E2 network had an E label and the number 2 was stamped next to the E with no color.  

  • Like 1
Link to comment
Share on other sites

I've never seen an E2 with metal cans  before  so this could very well be a  modified  E  network   , the  E2  usually ship with  small black   caps  instead of cans  

 

  the  E2  woofer inductor  is 4mH whereas the E is 2,5mH.  

Upgrading E-2 Crossovers - Technical/Restorations - The Klipsch Audio  Community

Link to comment
Share on other sites

1 hour ago, OO1 said:

I've never seen a E2 with metal cans  before  so this could very well be a  modified  E  network   , the  E2  usually ship with  small black   caps  instead of cans  

 

  the  E2  woofer inductor  is 4mH whereas the E is 2,5mH.  

 

My E2 networks.  Notice the stamped 2 next to the E and the metal cans.

 

IMG_1443.jpg

Link to comment
Share on other sites

15 hours ago, OO1 said:

I've never seen an E2 with metal cans  before  so this could very well be a  modified  E  network   , the  E2  usually ship with  small black   caps  instead of cans  

 

  the  E2  woofer inductor  is 4mH whereas the E is 2,5mH.  

Upgrading E-2 Crossovers - Technical/Restorations - The Klipsch Audio  Community

 

my '84 heresy e-2 crossovers looked exactly like in your picture.

 

it does appear that the previous owner(s) did a variety of things to try and make the two speakers be "the same."

Link to comment
Share on other sites

Were they mine, I'd replace the caps in kind on both, convert the Type D to "E" and replace the K-52-H with a K-55-V.  If the crossover schematics are no longer on the Forum, send me a PM.  If you can find 2 solder terminal K-55-Vs they are all the better. 

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.

Guest
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...