Klipsch Forte Crossover

[Chuckstereo]

Merry Christmas and Happy Holiday.

This is my first time on diyAudio and my first time building this Klipsch Forte crossover. The crossover build kit along with midrange and tweeter diaphragm upgrades for the Forte was purchased from Critespeakers.com.
I have followed the Klipsch Forte crossover diagram and then laid out my board designed that follows the original design and after putting the speaker back together, I've found the soundstage is not present like it was before I've replaced the original crossover.

I wanted to see if anyone can see a fault with my crossover rebuild or maybe a way that I can test the crossover build.

Thank you, Chuck

 

[Topping]

A 1uf Capacitor on the mid driver is definitely not good.

The mids can be improved with 3.0uf and 6ohm resistor 20 watt.

 

[planet10]

moved to the multi-way forum.

dave
diyAudio moderation team

 

[planet10]

The 1uF cap is the high pass on the mid. If it is a nominal 8Ω driver that means response below about 20kHz is being rolled off at 6dB /octvave. If it was 10uF it would probably be in the ballpark for a 4Ω mid driver.

dave

 

[AllenB]

Do both sides sound the same level, and same response? Does each driver sound reasonably balanced with the others? Have you tried changing polarities? Can you measure?

 

[Topping]

Get the midrange out of the woofer inductor

 

[Lojzek]

Not that it's relevant anymore to OP, but can someone explain who has designed the upgrade xo filter? Original xo frequencies are about 650Hz and 5.2kHz.

 

[Topping]

Can someone give a explanation of a speaker transformer.... i would bypass that mess and locate a small tweeter(ground shunt)INDUCTOR , for the midrange .35mh oh so is fine , preceded by 4uf capacitor. Adjust the output with a 20watt ground resistor(like the tweeter is using 40ohm) anywhere from 15ohm to 50ohm. If you play them loud consider putting midrange driver back in standard PHASE.now the forte 1 will sound fantastic.
cheers everyone.

 

[planet10]

Get the midrange out of the woofer inductor

Each leg of the circuit is completely separate. The woofer inductor does not affect the midrange.

dave

 

[planet10]

Can someone give a explanation of a speaker transformer...

I beleive it is an autoformer used like an L-Pad to adjust the output level. Commonly seen in Tannoy XOs and in the LS3/5A as well

dave

 

[Cal Weldon]

I have just opened my Fortes and can confirm the schematic in post 1 is correct. Including the T10A autoformer and metalized film caps.

 

[planet10]

From the inter web, a series of various Forte XOs (looks like mostly Forte 2)for comparison.

dave