Eminence Lab12 - 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 16th March 2005, 02:22 PM   #1
diyAudio Member
 
Join Date: Dec 2004
Default Eminence Lab12

I've heard very good things about this driver the EMINENCE LAB12 and speaking to BK electronics in the UK, they seem to think it would work in a 50 litre sealed box, similar to the Adire Shiva.

I wondered what plate amp I could use to partner up with it ? Parts Express sell the driver, and also some switchable voltage plate amps at about 250w and I wondered if this would be enough to drive it, seeing as though I could order both at the same time and shave a little off shipping charges.
  Reply With Quote
Old 16th March 2005, 06:40 PM   #2
diyAudio Member
 
Join Date: Jul 2003
Location: Silicon Valley
Post the T/S parameters.
__________________
Davy Jones
  Reply With Quote
Old 16th March 2005, 06:52 PM   #3
diyAudio Member
 
Join Date: Dec 2004
Default Thiele-Small Parameters

Resonant Frequency (fs) 22Hz
Impedance (Re) 4.29Ohms
Coil Inductance (Le) 1.48mH
Electromagnetic Q (Qes) 0.39
Mechanical Q (Qms) 13.32
Total Q (Qts) 0.38
Compliance Equivalent Volume (Vas) 125.22litres
Mechanical Compliance of Suspension (Cms) 0.35mm/N
BL Product (BL) 15.0 T-M
Voice Coil Overhang (Xmax) 13mm
Surface Area of Cone (Sd) 506.7cm2
  Reply With Quote
Old 16th March 2005, 07:10 PM   #4
diyAudio Member
 
Join Date: Jul 2003
Location: Silicon Valley
x
Attached Images
File Type: png lab12.png (5.3 KB, 547 views)
__________________
Davy Jones
  Reply With Quote
Old 16th March 2005, 07:45 PM   #5
diyAudio Member
 
Join Date: Dec 2004
Dave

Seems as though this would benefit from the same 4dB boost at 20 Hz that you applied when modelling the Dayton Titanic's response.
  Reply With Quote
Old 16th March 2005, 07:54 PM   #6
diyAudio Member
 
Join Date: Jul 2003
Location: Silicon Valley
Quote:
Originally posted by smallangryboy
Dave

Seems as though this would benefit from the same 4dB boost at 20 Hz that you applied when modelling the Dayton Titanic's response.
Yes, but I think it kind of wants a bigger box. Here it is in the 50Liter box with 4dB boost at 20Hz:
Attached Images
File Type: png lab12 boost.png (5.2 KB, 517 views)
__________________
Davy Jones
  Reply With Quote
Old 16th March 2005, 07:58 PM   #7
diyAudio Member
 
Join Date: Dec 2004
You don't hang around ! Just compared it to the one you did with the Dayton and the Titanic seems to just edge ahead.
  Reply With Quote
Old 17th March 2005, 03:57 AM   #8
mike.e is offline mike.e  New Zealand
diyAudio Member
 
mike.e's Avatar
 
Join Date: Sep 2004
Location: NZ
Send a message via ICQ to mike.e Send a message via MSN to mike.e
EQing sealed box + high SPl requirement =

use ported. When comparing the subwoofers keep SOMETHING equal eg : box Vb required for maximally flat alignment for all,or equal volume for all to compare efficiency and cutoff....

Use winisd pro + patch to see excursion soar due to EQ applied to high excursion sealed box area below Fcb
  Reply With Quote
Old 17th March 2005, 07:54 PM   #9
diyAudio Member
 
Join Date: Jul 2003
Location: Silicon Valley
Quote:
Originally posted by mike.e
EQing sealed box + high SPl requirement =

use ported. When comparing the subwoofers keep SOMETHING equal eg : box Vb required for maximally flat alignment for all,or equal volume for all to compare efficiency and cutoff....

Use winisd pro + patch to see excursion soar due to EQ applied to high excursion sealed box area below Fcb
He didn't say he required high SPL.
__________________
Davy Jones
  Reply With Quote
Old 17th March 2005, 09:28 PM   #10
mike.e is offline mike.e  New Zealand
diyAudio Member
 
mike.e's Avatar
 
Join Date: Sep 2004
Location: NZ
Send a message via ICQ to mike.e Send a message via MSN to mike.e
True he smallangryboy didnt state what SPL he requires.
  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
FS: Eminence Lab12 Generation II 12" Subwoofer Derrick Swap Meet 0 25th October 2008 06:53 PM
have lab12, looking for box design massappeal129 Multi-Way 1 31st January 2006 03:36 PM
Eminence LAB12 in a dipole woofer? Hennie Subwoofers 3 8th January 2005 10:30 AM
Shiva or Lab12? richie00boy Multi-Way 54 23rd April 2004 09:33 AM
Eminence LAB12/any take on this one? peterpan Multi-Way 4 18th April 2004 07:57 PM


New To Site? Need Help?

All times are GMT. The time now is 12:50 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