Horn sensitivity question - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

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 19th January 2013, 11:48 PM   #1
kctess5 is offline kctess5  United States
diyAudio Member
 
Join Date: Dec 2011
Location: California
Default Horn sensitivity question

I am trying to design a horn for a Fostex FE108EZ with hornresp but I am unsure what the sensitivity target should be.

The speakers sensitivity is 90 dB, so should the hornresp horn sensitivity be around that same level 2pi?

I have one designed that looks pretty flat and would work size wise but the simulated sensitivity between 80 and 300 hz is around 102dB. Would this mean that the midbass would be massively louder than the rest of the frequency range, or would adding stuffing etc tame it down a bit?

Thanks!
  Reply With Quote
Old 19th January 2013, 11:49 PM   #2
kctess5 is offline kctess5  United States
diyAudio Member
 
Join Date: Dec 2011
Location: California
BTW it's a back loaded horn, not front
  Reply With Quote
Old 20th January 2013, 12:03 AM   #3
xrk971 is online now xrk971  United States
diyAudio Member
 
xrk971's Avatar
 
Join Date: Oct 2012
Location: Virginia
That's good if the horn bass output is high in the design. It will tend to be lower once in practice and you can always add stuffing to balance. Much better to have too much to start rather than not enough. Post the HR output and plan if you want feedback on the design.
  Reply With Quote
Old 20th January 2013, 12:08 AM   #4
kctess5 is offline kctess5  United States
diyAudio Member
 
Join Date: Dec 2011
Location: California
Will do. Gimme a sec and I can post a couple of iterations

Thanks!
  Reply With Quote
Old 20th January 2013, 12:18 AM   #5
kctess5 is offline kctess5  United States
diyAudio Member
 
Join Date: Dec 2011
Location: California
Here is the first iteration: the biggest and higest sensitivity of the bunch
Attached Images
File Type: jpg input1.JPG (60.5 KB, 144 views)
File Type: jpg resp1.JPG (43.9 KB, 139 views)
File Type: jpg schm1.JPG (32.4 KB, 135 views)
  Reply With Quote
Old 20th January 2013, 12:23 AM   #6
kctess5 is offline kctess5  United States
diyAudio Member
 
Join Date: Dec 2011
Location: California
2nd iteration. Lower sensitivity, a bit more peaky up high, MUCH smaller
Attached Images
File Type: jpg input2.JPG (60.4 KB, 133 views)
File Type: jpg resp2.JPG (44.8 KB, 129 views)
File Type: jpg schm2.JPG (29.1 KB, 20 views)
  Reply With Quote
Old 20th January 2013, 12:25 AM   #7
kctess5 is offline kctess5  United States
diyAudio Member
 
Join Date: Dec 2011
Location: California
Alright there they are. Which do you think would be easier to tune with some stuffing for a flat response?

I just need to get to 80 Hz so the sub section can take over
  Reply With Quote
Old 20th January 2013, 01:19 AM   #8
GM is offline GM  United States
diyAudio Member
 
GM's Avatar
 
Join Date: Jun 2003
Location: Chamblee, Ga.
These do not appear to be horn+driver combined responses, so can't really comment.

GM
__________________
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
  Reply With Quote
Old 20th January 2013, 01:45 AM   #9
kctess5 is offline kctess5  United States
diyAudio Member
 
Join Date: Dec 2011
Location: California
They are not. The results I was getting were pretty unbelievable so I didn't think they were relevant for this kind of design. I'll post them in a second
  Reply With Quote
Old 20th January 2013, 01:50 AM   #10
kctess5 is offline kctess5  United States
diyAudio Member
 
Join Date: Dec 2011
Location: California
Default Combined Response 1

The first design from above:
Attached Images
File Type: jpg Combine1.JPG (47.0 KB, 26 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
A question on speaker sensitivity imassarano Full Range 15 30th August 2011 12:44 PM
Question about sensitivity specs audiolabtower Headphone Systems 5 12th February 2011 11:30 AM
Gain and sensitivity question.... weinstro Solid State 0 7th October 2008 05:39 AM
Question about input sensitivity? mr mojo Tubes / Valves 9 10th January 2006 12:35 AM
LM3875 Newbie Question re: sensitivity Gringrath Chip Amps 3 12th January 2004 02:05 PM


New To Site? Need Help?

All times are GMT. The time now is 02:04 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