Crossover for BMS 4590 driver - 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 7th July 2012, 08:14 AM   #1
diyAudio Member
 
Join Date: Dec 2008
Default Crossover for BMS 4590 driver

Does anyone have any schematics for any proven "custom" crossovers for the BMS4590 ( 8 ohm ones) I have been unsucessfully attempting the flatten the response of these drivers by adding notch filters etc. ( running in a 200hz Le Cleach horn crossed actively @ 350hz)

I have looked on the web and have seen ones on german pages for eckhorns etc, and but i don't understand from my simple calcs what they are doing as the notch filters seem to be in places in the freq range where i don't think i need them.
  Reply With Quote
Old 7th July 2012, 09:30 AM   #2
diyAudio Member
 
Brett's Avatar
 
Join Date: Jan 2002
Go active. I had a decent response dialled in in minutes with mine.
  Reply With Quote
Old 8th July 2012, 09:26 AM   #3
diyAudio Member
 
Join Date: Dec 2008
thanks for that advise, however i don't really want to go active with the MF to HF crossover as i haven't the room for another set of monoblocks!!
  Reply With Quote
Old 8th July 2012, 09:45 AM   #4
diyAudio Member
 
Brett's Avatar
 
Join Date: Jan 2002
Have fun then. They have a mongrel of a Z curve from memory (I haven't used mine in years). Best bet is to measure them and sim an xover out with Passive Crossover Designer.
  Reply With Quote
Old 8th July 2012, 10:10 AM   #5
Banned
 
Join Date: Jun 2011
Blog Entries: 1
I know Alk Universal networks which are specially designed to use in Klipsch heritage horn speakers work great with BMS CDs. take a look may give you a clue:
Attached Images
File Type: gif LAYOUT.GIF (11.7 KB, 544 views)
File Type: jpg PHOTO.JPG (224.7 KB, 538 views)
  Reply With Quote
Old 8th July 2012, 10:25 AM   #6
diyAudio Member
 
Brett's Avatar
 
Join Date: Jan 2002
^^ It would get you functional, ie make sound, but it's hardly a good combination. I had Khorns with ALKs when I first got them.
  Reply With Quote
Old 8th July 2012, 08:03 PM   #7
diyAudio Member
 
Join Date: Dec 2008
i had seen this and i throught it would be a starting point... KS-1804
  Reply With Quote
Old 9th July 2012, 10:12 AM   #8
diyAudio Member
 
Join Date: Oct 2005
Location: Kuopio
Quote:
Originally Posted by vinylnvalves View Post
i had seen this and i throught it would be a starting point... KS-1804
First X/O version of KS-1804 also included passive high-pass (C1011) for 4590/M. -6dB frequency was close to 410 Hz with SL250-2 horn:
Click the image to open in full size.

This could be one starting point but requires tuning for selected horn. I have also additional active filtering for resonance @ 3 kHz and peaks @ 7 kHz and 10 kHz.

Br,
KS
  Reply With Quote
Old 9th July 2012, 11:44 AM   #9
diyAudio Member
 
Join Date: Dec 2008
I have all the bits for this x-over, will build it and see how it compares to the std BMS x-over i already have. From my measurements todate there is a peak at 3kHz which is the most noticeable.
Will report back once i have the x-over up and running and measured.
  Reply With Quote
Old 9th July 2012, 12:39 PM   #10
mdocod is offline mdocod  United States
diyAudio Member
 
Join Date: Dec 2011
Location: Black Forest, CO
Send a message via AIM to mdocod
If you can take your measurements, and get them into simulation, you will be able to knock down response peaks in a matter of a few hours work in simulation.
  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
For Sale: BMS Coax Compression Driver 4590 NYCOne Swap Meet 1 16th October 2011 03:36 AM
Looking for BMS 4590 crossover schematics jaskierster Multi-Way 3 17th September 2010 05:36 PM
new BMS triaxial driver angeloitacare Multi-Way 2 26th June 2008 03:23 AM
BMS 4538 Driver vs Celestion CDX1-1745 gkoutz Multi-Way 0 1st August 2007 02:54 PM
BMS H4591 midrange driver slowmotion Multi-Way 0 10th February 2004 11:45 AM


New To Site? Need Help?

All times are GMT. The time now is 03:05 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