Suitable midrange cone, for bandpass mid in Unity horn. - Page 209 - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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 20th March 2017, 02:22 PM   #2081
diyAudio Member
 
Join Date: Apr 2011
re'
all of these velocities are at 140db.

why on earth do you want to do 140db in your shed? you won't listen that load for long, or, if you do, you won't hear anything for long.

Seriously, the velocities go up with SPL so of course you are seeing high velocities. Chances are you won't hear the air noise at those sound levels. Turn down the level and the air noise will go away.

If you could be satisfied with just 6 db less SPL, you could cut back from 4 woofers to 2 and save a bunch of money as well as reduce velocities
  Reply With Quote
Old 20th March 2017, 05:06 PM   #2082
diyAudio Member
 
Patrick Bateman's Avatar
 
Join Date: Oct 2006
Location: San Diego
I'd just use the same dimensions that Danley uses:

Midrange taps are 3/4" in diam, 3.5" from throat

Woofer taps are 2.5" in diam, 10.5" from throat

Woofer ports are 2.5" in diam, 14.5" from throat
  Reply With Quote
Old 20th March 2017, 06:40 PM   #2083
diyAudio Member
 
Join Date: Aug 2003
Location: Gilze-Rijen
Quote:
Originally Posted by Patrick Bateman View Post
The Misco 5", used in your Lambda Unity and the SPL TD-1.

Works quite well, I just feel kinda bad ordering anything less than a hundred, since they're hand-assembling them.
You can order 16 pieces at one time at Misco. They are very friendly.

This is the original used in the unity horn project from Lambda.

gr. Marcel
  Reply With Quote
Old 21st March 2017, 05:28 AM   #2084
diyAudio Member
 
Join Date: Apr 2010
Thanks PB. And if you look at 2.5" ports for the woofers that is quite high for velocity also.

This wont be for just my shed. I am planning on using these speakers for an outdoor cinema. When they are in the shed they will be used at much lower volumes. I am just planning on keeping velocities down at its max potential. Plan for maximum and use 75%. Thats the idea anyways.
  Reply With Quote
Old 10th May 2017, 08:10 PM   #2085
diyAudio Member
 
Join Date: Dec 2015
I've build a pair of unity horns, with the Celestion tf0410 and bms4550. The bass is handles from 300 down by a H frame with a Eminence alpha 15. It actually sounds great, but I'm kind of missing just a few more notes down from the horn actually. That made me thing about maybe using other mid driver for the horn.

https://www.madisoundspeakerstore.co...natural-paper/

ofcourse the horns then need to be in a box which for me isn't really a problem.

Any suggestions?
  Reply With Quote
Old 10th May 2017, 08:32 PM   #2086
diyAudio Member
 
Join Date: Apr 2011
you want the mids on the horn to play lower?
well, that driver you linked looks like it could help with that. As you noted you will need to enclose it to get that extension.

I was playing the 4 Faital Pro 4FE35's down to 200 Hz in my Synergies until I decided it integrated with the room better crossed over at 300 hz so its definitely feasible using something with a little more Xmax than the typical sealed back mid.
  Reply With Quote
Old 11th May 2017, 12:01 AM   #2087
diyAudio Member
 
Patrick Bateman's Avatar
 
Join Date: Oct 2006
Location: San Diego
Quote:
Originally Posted by fotsinijts View Post
I've build a pair of unity horns, with the Celestion tf0410 and bms4550. The bass is handles from 300 down by a H frame with a Eminence alpha 15. It actually sounds great, but I'm kind of missing just a few more notes down from the horn actually. That made me thing about maybe using other mid driver for the horn.

https://www.madisoundspeakerstore.co...natural-paper/

ofcourse the horns then need to be in a box which for me isn't really a problem.

Any suggestions?
TF0410 and BMS4550 is a good choice, that will cover 250Hz-20Khz nicely.

Eminence Alpha 15 is a relatively cheap driver and it's inductance might be limiting you. What do the measurements look like?
  Reply With Quote
Old 11th May 2017, 06:14 AM   #2088
diyAudio Member
 
Join Date: Apr 2010
Just for my own information when using the TPL-200 where is the starting acoustic point to measure for this driver?

I am trying to figure how high can it be run with the Celestion TF0414 closed back mids.I am used to finding exit angles and what not for CD's but I am using the TPL so its new to me.
  Reply With Quote
Old 11th May 2017, 09:04 AM   #2089
diyAudio Member
 
Join Date: Dec 2015
Quote:
Originally Posted by Patrick Bateman View Post
TF0410 and BMS4550 is a good choice, that will cover 250Hz-20Khz nicely.

Eminence Alpha 15 is a relatively cheap driver and it's inductance might be limiting you. What do the measurements look like?
The measurement looks like this, I crossed the mids at 300 but maybe they can go a bit lower.
Attached Images
File Type: png Screen Shot 2017-03-11 at 15.46.26.png (155.8 KB, 111 views)
  Reply With Quote
Old 11th May 2017, 09:39 AM   #2090
kees52 is offline kees52  Netherlands
diyAudio Member
 
Join Date: May 2009
Location: Sprang-capelle Holland.
Quote:
Originally Posted by fotsinijts View Post
The measurement looks like this, I crossed the mids at 300 but maybe they can go a bit lower.
That is a beautifull respons
  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
Bandpass Woofer/Midrange? m@ Multi-Way 5 25th March 2006 02:10 AM
looking for 6.5inch woofers suitable for a 30 - 35Hz horn... and a small horn too :P SkinnyBoy Multi-Way 24 13th February 2004 05:06 AM


New To Site? Need Help?

All times are GMT. The time now is 08:03 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2
Wiki