Anyone used 0.01uf caps in passive crossovers? - Page 2 - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 24th October 2012, 02:18 AM   #11
Pano is offline Pano  United States
diyAudio Moderator
 
Pano's Avatar
 
Join Date: Oct 2004
Location: Milliways
Blog Entries: 4
Thanks. 0.1uF makes sense, you should just be able to hear that on a tweeter, but 0.01uF strains the imagination - even on an electrolytic.
  Reply With Quote
Old 24th October 2012, 08:07 AM   #12
diyAudio Member
 
wolf_teeth's Avatar
 
Join Date: Mar 2006
Location: Indiana
Blog Entries: 1
Quote:
Originally Posted by system7 View Post
I have also seen commercial speakers with metal tweeters where a 50 ohm 1 watt metal film is shunted across the tweeter. This realy ought to do nothing, but it will stop the speaker impedance going very high at ultrasonic frequency, so might help amp stability.
Nope- that's not the purpose at all. When you take into account the varying impedance of the tweeter against that 50 ohm resistor, all of the measurement points across the Z plot get paralleled with the 50 ohms.

My guess for this resistor usage, as I've done it for this purpose, is to minimize the effective Fs magnitude as it should do. 50 in parallel with a 25 ohm Zmax nets a new Zmax just below 17 ohms, but 50||4 = 3.7 ohms; or a minimal change.

Back to the topic...
Wolf
__________________
Photobucket picture pages: http://photobucket.com/Wolf-Speakers_and_more
Writeups/thoughts/blogs: http://techtalk.parts-express.com/blog.php?u=4102
  Reply With Quote
Old 24th October 2012, 08:06 PM   #13
tvrgeek is offline tvrgeek  United States
diyAudio Member
 
Join Date: Dec 2009
Location: Md
Quote:
Originally Posted by ringo_the_hifi View Post
Cheers chaps... Well, still listening so I'll report back on the decision.

I feel it's got something to do with speed, things seem to sound that little bit clearer/quicker/airier. Does this make sense?

Easy to say (as I've done it) that there is no difference because I feel it's more apparent on certain recordings.
"Speed" One of those words used by people who have not had the time to understand how speakers work. No, the caps have nothing to do with "speed". They have to do with value, ESR, DF and non-linear distortion. Basically, improving all three.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
What do you think of passive crossovers? Boscoe Multi-Way 259 22nd August 2013 05:12 PM
Where is the point of diminishing returns with caps in passive crossovers? PDXMike Analog Line Level 14 2nd April 2012 09:40 PM
Do bypass capacitors work on passive crossovers and what about shunt caps. . . erickalan77 Multi-Way 4 17th August 2011 04:52 AM
passive crossovers.... stuman Subwoofers 10 8th December 2009 02:44 AM
dB loss by using passive crossovers? Active vs Passive and 1st vs 4th order Hybrid fourdoor Multi-Way 3 11th July 2004 09:16 PM


New To Site? Need Help?

All times are GMT. The time now is 11:27 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2