new lab15 - Page 3 - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers

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 30th January 2010, 05:22 PM   #21
diyAudio Member
 
chris661's Avatar
 
Join Date: Feb 2008
Location: Sheffield
Blog Entries: 8
I'd agree - there's no mention of horns in the recommended cabinets PDF.

It seems to be designed for high output from a pretty small box, ie, portable discos.
__________________
"Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo
My setup: http://www.diyaudio.com/forums/multi...tang-band.html
  Reply With Quote
Old 30th January 2010, 05:27 PM   #22
diyAudio Member
 
Join Date: Dec 2009
check again
  Reply With Quote
Old 30th January 2010, 06:00 PM   #23
diyAudio Member
 
chris661's Avatar
 
Join Date: Feb 2008
Location: Sheffield
Blog Entries: 8
A few sealed designs, 3 vented designs. I counted the horn designs twice. There's still 0.

http://www.eminence.com/pdf/cab-lab-15.pdf
__________________
"Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo
My setup: http://www.diyaudio.com/forums/multi...tang-band.html
  Reply With Quote
Old 30th January 2010, 06:36 PM   #24
MaVo is offline MaVo  Germany
diyAudio Member
 
Join Date: Jan 2006
“The Lab 15 is suitable for small sealed cabinets for automotive use.” said Jerry McNutt, Design Engineer at Eminence. “Go with a medium to large sized vented cabinet or a horn loaded design for PA, sound reinforcement, or dance club applications.”

from: Eminence - The Art and Science of Sound

getting this information wasnt so incredibly difficult
  Reply With Quote
Old 31st January 2010, 11:58 AM   #25
diyAudio Member
 
chris661's Avatar
 
Join Date: Feb 2008
Location: Sheffield
Blog Entries: 8
It's a curiosity, then, that they haven't put any horns into the recommended enclosure PDF.

Looks like we're waiting for Eminence to sort themselves out, then we can see what they recommend.

Anyone had any luck modelling it yet?
__________________
"Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo
My setup: http://www.diyaudio.com/forums/multi...tang-band.html

Last edited by chris661; 31st January 2010 at 12:01 PM.
  Reply With Quote
Old 31st January 2010, 03:02 PM   #26
iand is offline iand  United Kingdom
diyAudio Member
 
Join Date: Feb 2007
Location: London
Quote:
Originally Posted by chris661 View Post
I'll admit that I've found this driver a little confusing. It has a higher fs than the original lab 12, but a similar sensitivity, and it's a bigger driver.
For PA applications (including tapped horn) the parameters are a bit strange -- Mmd is very high for a 15" driver, even one with relatively large Xmax, so efficiency is low.

It looks more like a car/home sub type driver in some ways, but its Xmax and Pe are lower than many other drivers for these uses.

Difficult to see what it's good for, there a better drivers for nearly any application I can think of...
  Reply With Quote
Old 31st January 2010, 06:47 PM   #27
diyAudio Member
 
chris661's Avatar
 
Join Date: Feb 2008
Location: Sheffield
Blog Entries: 8
I suppose if they dropped the resonance to 18Hz, and made it take a bigger box, we'd all be happy.

I get the impression it's one of those that you can use with a small ish box, and it will go quite low, pretty loud, and it won't be huge (think portable disco).
Otherwise, it's too high a resonance for true HT.
I suppose, moving that much air, it would stand some serious eq... Even so, there's probably drivers out there more suited to such applications.
__________________
"Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo
My setup: http://www.diyaudio.com/forums/multi...tang-band.html
  Reply With Quote
Old 31st January 2010, 07:47 PM   #28
diyAudio Member
 
Join Date: Jul 2008
Location: Pacific Northwest
Quote:
Originally Posted by iand View Post
For PA applications (including tapped horn) the parameters are a bit strange -- Mmd is very high for a 15" driver, even one with relatively large Xmax, so efficiency is low.

It looks more like a car/home sub type driver in some ways, but its Xmax and Pe are lower than many other drivers for these uses.

Difficult to see what it's good for, there a better drivers for nearly any application I can think of...
I agree, so I am sitting on the sidelines watching, I am sure that someone has an appropriate cabinet in mind. Maybe I can learn something.
  Reply With Quote
Old 31st January 2010, 09:21 PM   #29
bjorno is offline bjorno  Sweden
diyAudio Member
 
Join Date: Mar 2005
Location: Jacobsmountain
Send a message via MSN to bjorno
Quote:
Originally Posted by iand View Post
...Difficult to see what it's good for, there a better drivers for nearly any application I can think of...
Hi iand,All..

I think of a T-TQWT use, for both Music and HT.

Thoughts in pictures..:

b
Attached Images
File Type: jpg 1-Lab15 tapped-plots.jpg (223.8 KB, 353 views)
File Type: gif 2-Lab15- Mid Bass-TH.GIF (141.9 KB, 341 views)
File Type: jpg 3-EminenceLAB15_T-TQWT-comp.jpg (195.6 KB, 337 views)
File Type: gif 4-EminenceLAB15_T-TQWT.GIF (181.0 KB, 290 views)
File Type: gif 5-EminenceLAB15_HR-OD_comp_MJK-TL.GIF (84.6 KB, 286 views)
  Reply With Quote
Old 1st February 2010, 11:32 AM   #30
bjorno is offline bjorno  Sweden
diyAudio Member
 
Join Date: Mar 2005
Location: Jacobsmountain
Send a message via MSN to bjorno
Hi,

FYI, A dual Lab15 driver T-TQWT: See the picture.

PS: The first picture in my posting #29 here above were simulated from the submitted TH text file in Post# 10 ( lab15_tp.txt ) and not my recommendation ( ) for a Sub to be used in any home environment due to the obviously need for FR equalization and the need for signal delaying the main speakers.

b
Attached Images
File Type: gif 2xEminenceLAB15_T-TQWT.GIF (180.3 KB, 124 views)
  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
new lab15 soundhead Subwoofers 2 29th January 2010 06:30 PM


New To Site? Need Help?

All times are GMT. The time now is 07:55 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