Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

Piezo help
Piezo help
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
Thread Tools Search this Thread
Old 5th September 2007, 08:37 AM   #21
geminni is offline geminni  Serbia
diyAudio Member
Join Date: Dec 2006
Originally posted by shawn1972
Planet10 gave me a link a couple of posts up.The last paragraph might as well be chinese to me.Could somebody draw that out for me.I am confused on series caps and shunts.I thought shunt was series and series cap was parallel.HELP,I'm so lost.here it is.............Looking from the amp, first the series crossover cap, say 4 uF, then the 22 ohm shunt from hot to ground, then a series cap of about 0.15 uF for 6 dB attenuation, and then a series resistor of about 30-50 ohms to tame the very top end, then the piezo itself.

Here is how i made it couple months ago.
Attached Images
File Type: jpg piezo.jpg (13.3 KB, 134 views)
  Reply With Quote
Old 5th September 2007, 12:09 PM   #22
Inductor is offline Inductor  Portugal
diyAudio Member
Inductor's Avatar
Join Date: Feb 2006
Location: Cascais
Piezo is about 94 dB (x2units). Please give adequate information of the woofer specs you plan to use to the forum and xover frequency if you know.
  Reply With Quote
Old 5th September 2007, 08:12 PM   #23
shawn1972 is offline shawn1972  Canada
diyAudio Member
Join Date: Dec 2005
Location: windsor
Geminni and rest thanks for the help.That diagram is exactly what I was looking for.I have 12 Vifa mids and I have decided to go with 12 instead of 24 piezo's. i will run each 1 parallel off woofer to that diagram crossover.Geminn,How do they sound?
  Reply With Quote
Old 6th September 2007, 07:09 AM   #24
geminni is offline geminni  Serbia
diyAudio Member
Join Date: Dec 2006
Well, my piezos are crossed somewhere around 6khz because they work in 3-way PA speaker. I used them here because mid horn lacks in high frequencies. Sound is ok for PA but for home listening i don't like them.
Other thing is that mine are some cheap chinese piezos, 3 per box, and all 6 have different spl!!

Some years ago i had one cheap and one Motorola piezo conected parallel, per box. After just 1 party both Motorolas have survived and both cheap one blew out! And i remember that Motorlas had much better sound.

Sound of your piezos can be different so it is up to you to decide what to do. Do some experiments with crossover so you can learn what each element does. And then you can find the sound you like.
  Reply With Quote


Piezo helpHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Piezo crossover Pbassred Multi-Way 9 23rd November 2004 12:19 PM
Not piezo question again? Zene Gillette Multi-Way 1 23rd November 2004 09:01 AM
Piezo compression Pbassred Multi-Way 4 18th November 2004 06:01 PM
Using piezo tweeters Rory Multi-Way 15 6th November 2001 08:46 PM

New To Site? Need Help?

All times are GMT. The time now is 09:47 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio