[2.2uF 2.0uF and Types you use. Chorus "I"]

5 minutes ago, Deang said:

Why would you want to do that?

 

Because I'm experimenting with CornScala configurations. Specifically, Altec 811b horns.

[2.2uF 2.0uF and Types you use. Chorus "I"]

Great info here! So, long story short, if I want to change the low pass to 700hz it's not as simple as putting in a lower capacitance cap?

[2.2uF 2.0uF and Types you use. Chorus "I"]

1 hour ago, Deang said:

Playing with this is instructive. 
 

http://www.kbapps.com/audio/speakerdesign/calculators/ThreeWayCrossoverSchematicCalculator.php

 

As the capacitor value goes up, the crossover frequency goes down, and visa versa. 
 

One should get as close to the target value as possible. When I buy capacitors, I buy from vendors who measure and match them for me. I’ve used many a 2.2uF, but all were 2.1 or lower. Keep in mind however, I’m not using inexpensive parts either. 

 

What am I doing wrong here (Cornwall 1)? C1 seems close enough but C2 is obviously way off from the 2uF that's actually in the network.

 

[2.2uF 2.0uF and Types you use. Chorus "I"]

1 hour ago, Chief bonehead said:

You would be surprised how much the output changes by not using the same value and spec capacitor. This applies mostly to caps in series with the driver. On the woofer section, if the cap is in parallel, then is should be ok to keep it electrolytic. Using a different type of cap here is not so critical because it is in parallel with the driver. 

 

I don't doubt it! I'm very interested to know the how, though.

 

1 hour ago, Deang said:

Playing with this is instructive. 
 

http://www.kbapps.com/audio/speakerdesign/calculators/ThreeWayCrossoverSchematicCalculator.php

 

As the capacitor value goes up, the crossover frequency goes down, and visa versa. 
 

One should get as close to the target value as possible. When I buy capacitors, I buy from vendors who measure and match them for me. I’ve used many a 2.2uF, but all were 2.1 or lower. Keep in mind however, I’m not using inexpensive parts either. 

 

Good info. Changing the crossover point is not quite as simple as just changing the capacitance, though, right? I've seen Al K state many times that you need to redesign the whole network. On the other hand, I get the sense that Al might tend to get caught up in the minutia.

[2.2uF 2.0uF and Types you use. Chorus "I"]

It would be interesting to see a reply from someone who knows exactly how a passive crossover works. I understand what a capacitor does, in general, and its role in a crossover. I do not understand how the capacitance rating affects which frequencies are filtered. Understanding that is what's required to actually answer the OP's question - Do you have to use the sane capacitance rating as what you removed, or can you move up or down in capacitance?

[****SOLD****1963 KLIPSCHHORNS Houston/Austin]

Just now, 001 said:

no -just do another reply --ok will do -

 

ok thanks... but i just noticed the OP doesn't have 5 posts either so i guess he can't respond if i do pm him 🤣

[****SOLD****1963 KLIPSCHHORNS Houston/Austin]

On 5/28/2021 at 8:57 AM, 001 said:

you need 5 post to be able to use the PM   feature -

 

 

OK... do I also need 5 posts to purchase these speakers?

[****SOLD****1963 KLIPSCHHORNS Houston/Austin]

very interested but i'm in dallas and have a newborn so i can't leave the wife alone too long. do you think you could meet halfway? feel free to pm me.

[Fastrac Cornwall squawker horns]

5 hours ago, rmlowz said:

fastlaneaudio@aol.com  I just ordered a pair and Dave's tweeter lenses also

Rich

Thanks!

[Fastrac Cornwall squawker horns]

I'm looking to "Cornscala" my Cornwall Is but I can't figure out where to buy the Fastrac horns. Is Fast Lane defunct? If so, what are people using instead?

 

Thanks!