Design me a crossover and I'll build it - Page 4 - 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 16th February 2013, 09:14 PM   #31
Jay1111 is offline Jay1111  United States
diyAudio Member
 
Join Date: Feb 2013
Location: AZ
That will work. Are you combining smaller values for cost saving?

Make sure you follow Zaph's advice for mounting the driver

Quote:
This is without a doubt the highest performing 3" I've come across, at least on a few fronts. The motor is an underhung neodymium design and the cone is thin (and fragile) formed aluminum. The only negative is a slightly ragged top end that may take some filter work if used full range, but I'd generally recommend a cheap and small neo tweeter placed close and crossed over high. There's a lot on the positive side, like high sensitivity, a clean low end and smooth midrange response. The frame is cast with ventilation under the spider, but users will have to pay close attention to airflow behind the cone - It's even more important to chamfer the inside baffle opening and in this case likely use a thinner baffle material as well.

Last edited by Jay1111; 16th February 2013 at 09:17 PM.
  Reply With Quote
Old 16th February 2013, 09:27 PM   #32
diyAudio Member
 
Join Date: Jan 2004
Location: Toronto, ON, Canada
Yes, somewhat. Solen's polyester series is cheaper than the series you picked (probably MKP) but they didn't have the exact values required, so I needed to parallel smaller caps to get the right values.

I am going to chamfer away as much as I can. I needed to do the same for some Hi-Vi B3S drivers I had, too.
  Reply With Quote
Old 16th February 2013, 09:36 PM   #33
diyAudio Member
 
Join Date: Jan 2004
Location: Toronto, ON, Canada
There are 5 inductors in this crossover. I'm worried I may not have enough space to isolate them properly. Should I put in some steel sheet between the inductors to form maze-like walls?
  Reply With Quote
Old 16th February 2013, 09:39 PM   #34
Jay1111 is offline Jay1111  United States
diyAudio Member
 
Join Date: Feb 2013
Location: AZ
Never thought about that, not sure if it would work? For my center build I put the woofer/tweeter crossover behind one of the woofers, and the mid crossover behind the other woofer.
  Reply With Quote
Old 17th February 2013, 06:02 AM   #35
diyAudio Member
 
Join Date: Jan 2004
Location: Toronto, ON, Canada
I believe it would shield the fields just fine. I just don't know if it would affect the inductance (being that the permeability is so high).
  Reply With Quote
Old 20th February 2013, 05:22 PM   #36
diyAudio Member
 
Join Date: Jan 2004
Location: Toronto, ON, Canada
The dip at 2.3 kHz is coming from baffle diffraction? The Fountek should be smooth there. I know there is a dip at 1.2 kHz from the driver itself.

I'm wondering how much I can fix with liberal application of wool felt.
  Reply With Quote
Old 20th February 2013, 08:46 PM   #37
Jay1111 is offline Jay1111  United States
diyAudio Member
 
Join Date: Feb 2013
Location: AZ
Yes, the dip/peak/dip in the mids response is all related to its placement on the baffle.
  Reply With Quote
Old 20th February 2013, 09:05 PM   #38
diyAudio Member
 
Join Date: May 2010
Location: MN
The response graph you're looking at is what, +/- 1.5dB? There's little point in analyzing the little bumps in that. The real question is how close Jay's estimates on the acoustic offsets end up being and (relatedly) whether the overall power/polar response ends up being a voicing you like in-room.
  Reply With Quote
Old 20th February 2013, 11:59 PM   #39
diyAudio Member
 
Join Date: Jan 2004
Location: Toronto, ON, Canada
Won't know until I try. It's a hell of a lot better than I would be able to do on my own anyway.

I think I will be adding some F-13 felt on the baffle.
  Reply With Quote
Old 23rd February 2013, 01:15 PM   #40
diyAudio Member
 
Join Date: Jan 2004
Location: Toronto, ON, Canada
Er, it looks like the width of the baffle is actually going to be 22", not 20". Does this affect the crossover?
  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
can someone help build me a passive crossover design? illnastyimpreza Multi-Way 14 16th March 2011 09:17 PM
Marchand Crossover Build Help Beez Analog Line Level 2 14th November 2009 05:52 PM
Build your own Virtual Crossover Netlist Multi-Way 0 2nd January 2007 10:22 AM
What should I use to build my own crossover? punkrokr1701 Parts 12 7th September 2006 03:18 AM
please help me build my crossover skylar112 Multi-Way 4 29th June 2006 11:40 PM


New To Site? Need Help?

All times are GMT. The time now is 03:29 AM.


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