Jump to content


Interested in Custom Heritage Speakers?

Did I get your attention? We are gauging interest in a possible upcoming line of custom Heritage speakers. Check out this thread and be heard!

Photo
- - - - -

KP 301 KP3.0A crossover questions


  • Please log in to reply
5 replies to this topic

#1 twalkonline

twalkonline

    Member

  • Members
  • PipPip
  • 37 posts
  • Offline

Posted 21 December 2013 - 11:03 AM

I feel like an archeologist, unearthing things that no living person has ever seen!

First, does anyone have a schematic for this crossover? That would probably answer my questions. I found one for the KP 301-II, but this is different in several ways. I expected this one to look like a KP 201, crossover, but it does not.

I don't see anything I recognize as a poly switch, although there are a couple of components in the tweeter circuit that I can't identify. They are epoxy potted in little black plastic cases and have no markings. Anybody know what these are? This version does not have separate HF and LF inputs for bi-amping, but it has a separate fuse for the tweeter.

Would appreciate comments...

#2 twalkonline

twalkonline

    Member

  • Members
  • PipPip
  • 37 posts
  • Offline

Posted 21 December 2013 - 02:28 PM

After tracing the circuit, I've determined that the black epoxy potted mystery components have to be capacitors. Am guessing at values. The other caps are labeled 4J. Can't remember how that translates to uF.

Hope my sketch of circuit is legible...

Attached Thumbnails

  • image.jpg


#3 CECAA850

CECAA850

    Klipsch Forum Lifer Carlooch

  • Super Moderators
  • PipPipPipPipPipPipPipPip
  • 24,716 posts
  • LocationSoutheast TX
  • Offline

Posted 21 December 2013 - 02:55 PM

I believe Bob Crites has the schematic. There's also a general schematic thread somewhere with many drawings. I know there's a 301 drawing in it but I don'y know if it's a 1 or a 2. You might try searching for it.



#4 moray james

moray james

    Forum Ultra Veteran

  • Members
  • PipPipPipPipPip
  • 3,884 posts
  • Offline

Posted 21 December 2013 - 05:04 PM

should be a similar network here. Best regards Moray James.

Attached Thumbnails

  • Klipsch Forte ll Chorus ll KL301 ll Crossovers info.jpg


#5 CECAA850

CECAA850

    Klipsch Forum Lifer Carlooch

  • Super Moderators
  • PipPipPipPipPipPipPipPip
  • 24,716 posts
  • LocationSoutheast TX
  • Offline

Posted 21 December 2013 - 05:28 PM

The 301 and 301 II are completely different.


Edited by CECAA850, 21 December 2013 - 05:28 PM.


#6 twalkonline

twalkonline

    Member

  • Members
  • PipPip
  • 37 posts
  • Offline

Posted 21 December 2013 - 05:32 PM

Thanks. It's most similar to the Chorus I, but not exactly. KP has additional low pass filter in the mid circuit. Have redrawn - I think it's correct this time.

Attached Thumbnails

  • image.jpg