Thoughts on this driver?
Printed From: Speakerplans.com
Category: Plans
Forum Name: MT122
Forum Description: Discussion / Questions about the MT122
URL: https://forum.speakerplans.com/forum_posts.asp?TID=93063
Printed Date: 27 March 2026 at 3:15am
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: Thoughts on this driver?
Posted By: vmh
Subject: Thoughts on this driver?
Date Posted: 22 August 2015 at 12:25am
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Not saying what the driver is but here are the specs. Any thoughts? ;-) FS - 37.9 QES - 0.335 QTS - 0.330 BL - 21.879 EBP - 113.13 LE - 2.29 BL and QTS look good but EBP and LE are shite. Whats most important for the MT? ------------- It's not how big it is, it's what you do with it! |
Replies:
Posted By: all bass
Date Posted: 23 August 2015 at 11:51pm
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Bass driver! ------------- https://www.instagram.com/my_modular_journey/ |
Posted By: _djk_
Date Posted: 24 August 2015 at 6:11am
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2x the EBP is the mass corner, or 226hz in this case.
This driver will have trouble pushing air into the throat of a horn much above its mass corner (as any driver will).
This can be seen if you load it into Hornresp.
http://s56.photobucket.com/user/dkleitsch/media/12PE32x2_zpsbe9adcef.jpg.html" rel="nofollow">
 The EBP on the 12PE32 is 268 Hz, so the mass corner is 536hz. With an optimized thoat it can reach 1Khz and only be 5dB down (on a constant coverage horn).
http://milesadamsband.com/uploads/2/9/4/5/2945371/8193302.jpg" rel="nofollow - http://milesadamsband.com/uploads/2/9/4/5/2945371/8193302.jpg
Plans and cut-list online. ------------- djk |
Posted By: vmh
Date Posted: 25 August 2015 at 7:45pm
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Thanks for that.. I've been after the input paramaters for the MT so i can make my own comparisons so this is a great help. Actually i use XT8 horns over a pair of TDA version MTs at the moment so these don't look so bad as i can cross them over down to 350Hz (ish). I built them a few years ago and not been able to afford to load the MTs yet. These are the specs for The Box drivers which, not ideal maybe, are only 50 euros each. :-) ------------- It's not how big it is, it's what you do with it! |
Posted By: all bass
Date Posted: 25 August 2015 at 10:59pm
http://www.lautsprecherforum.eu/viewtopic.php?f=95&t=5351" rel="nofollow - 12/280-8A measured parameters Here you can find the actual measured TS for this driver.  ------------- https://www.instagram.com/my_modular_journey/ |
vmh wrote:Posted By: vmh
Date Posted: 26 August 2015 at 10:15pm
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Ohh. that's even worse. It's the 12-280/8w i am looking at though. ------------- It's not how big it is, it's what you do with it! |
Posted By: all bass
Date Posted: 27 August 2015 at 7:58pm
The "W" version is a very heavy coned 4" VC subbass driver. It will sound absolutely horrible in a MT122, or any mid/top at all!!  ------------- https://www.instagram.com/my_modular_journey/ |
Posted By: Seehnav
Date Posted: 28 August 2015 at 2:48pm
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Maybe use the other one? http://www.thomann.de/gb/the_box_speaker_122808a.htm" rel="nofollow - http://www.thomann.de/gb/the_box_speaker_122808a.htm ?
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Posted By: vmh
Date Posted: 28 August 2015 at 11:59pm
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Back to the hunt then. Don't know why i ask. I always know the answer but i live in hope.  ------------- It's not how big it is, it's what you do with it! |
Posted By: vmh
Date Posted: 19 September 2015 at 11:37pm
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But if they are only playing between around 150 to 300 or 400 hz do i need such a high EBP? ------------- It's not how big it is, it's what you do with it! |