Waveguides and horns - Page 55 - diyAudio
Go Back   Home > Forums > Commercial Sector > Group Buys

Group Buys Members group buys

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 28th May 2011, 08:44 AM   #541
jzagaja is offline jzagaja  Poland
diyAudio Member
 
Join Date: Jun 2004
Location: Szczecin
Send a message via Skype™ to jzagaja
Full size bass horn in a room 1/3 oct. smoothing- lack of room modes.
Attached Images
File Type: gif Jogi_basshorn.gif (57.4 KB, 474 views)
__________________
Visit us at http://www.horns.pl/
The SEOS™ Project http://www.avsforum.com/t/1291022/he...-rallying-here
  Reply With Quote
Old 28th May 2011, 11:37 AM   #542
Defo is offline Defo  Norway
diyAudio Member
 
Join Date: Nov 2008
Quote:
Originally Posted by gedlee View Post
What is the use of "Horn gain"? I mean who cares? Can't you get high powered amps or high efficiency woofers in Europe? Directivity control is all that matters and you never show that.
Less cone movement, less power needed for a given sound pressure, less distortion, the ability to use low powered amps which very often sound better then its high powered brethren... Enough for me to care...
  Reply With Quote
Old 28th May 2011, 11:41 AM   #543
jzagaja is offline jzagaja  Poland
diyAudio Member
 
Join Date: Jun 2004
Location: Szczecin
Send a message via Skype™ to jzagaja
Usually with OS/SEOS one use small capacitor as L-pad and CD correction (flattening power response). Resulting sensitivity drops below 100dB. Bass horn loading is then obsolete ;-)
__________________
Visit us at http://www.horns.pl/
The SEOS™ Project http://www.avsforum.com/t/1291022/he...-rallying-here
  Reply With Quote
Old 28th May 2011, 12:02 PM   #544
Defo is offline Defo  Norway
diyAudio Member
 
Join Date: Nov 2008
Quote:
Originally Posted by jzagaja View Post
Usually with OS/SEOS one use small capacitor as L-pad and CD correction (flattening power response). Resulting sensitivity drops below 100dB. Bass horn loading is then obsolete ;-)
Not quite, you still maintain the reduction in cone movement and therefore reduction in distortion as well as increased dynamic headroom. Correct me if I'm wrong tho.
  Reply With Quote
Old 28th May 2011, 01:26 PM   #545
diyAudio Member
 
Join Date: Mar 2005
Location: MI
So, in a small room (less than 16-20m dimensionally), what benefit can be had by using horn subwoofers? If the wavelengths are longer than room dimensions, AFAIK, it's not going to be acting like a horn (with reduced cone movement and reduced distortion), it's going to act just like a direct radiator. If I lived in an auditorium, I'd be all over using multiple horn subs.
  Reply With Quote
Old 28th May 2011, 05:44 PM   #546
diyAudio Member
 
Join Date: Sep 2010
Quote:
Originally Posted by dnewma04 View Post
So, in a small room (less than 16-20m dimensionally), what benefit can be had by using horn subwoofers? If the wavelengths are longer than room dimensions, AFAIK, it's not going to be acting like a horn (with reduced cone movement and reduced distortion), it's going to act just like a direct radiator. If I lived in an auditorium, I'd be all over using multiple horn subs.
ER...

A horn subwoofer will still have the behaviour necessary for "horn loading" at down to its corner. (Motor-based) Distortion and cone movement are still reduced.
  Reply With Quote
Old 29th May 2011, 02:40 AM   #547
gedlee is offline gedlee  United States
diyAudio Member
 
gedlee's Avatar
 
Join Date: Dec 2004
Location: Novi, Michigan
Quote:
Originally Posted by RockLeeEV View Post
ER...

(Motor-based) Distortion and cone movement are still reduced.
As does a bigger driver, and in terms of total size, its still smaller than a bass horn. Sorry to be so blunt, but bass horns in small rooms simply make no sense. That is the reality.
  Reply With Quote
Old 29th May 2011, 11:15 AM   #548
doug20 is offline doug20  United States
diyAudio Member
 
Join Date: Mar 2009
Quote:
Originally Posted by gedlee View Post
As does a bigger driver, and in terms of total size, its still smaller than a bass horn. Sorry to be so blunt, but bass horns in small rooms simply make no sense. That is the reality.

Define a small room? having clean dynamics is imporant. Having less harmonic distortion is important. Having CLEAN 120 dB with 100Watts is important to some people too. Doing it all for around $100 is well....priceless!!!!

Have you seen the low cost flat pack horns on AVSForums?? Have you seen the new F-20 horn design with 20Hz and HUGE output with a $70 driver (MFW-15). It makes a lot of sense if you look at the numbers plus the $$$.

The numbers simply say it makes a lot of sense!! here is a thread that makes a lot of sense http://www.avsforum.com/avs-vb/showthread.php?t=1329971, there is are many other builds that make sense. The DTS-10 is a monster choice for low power high output down to 12Hz.

FWIW, I choose the best subwoofer drivers instead and go sealed because I want 10Hz output (> 110dB) but my solutions is 10x more expensive. The value/performance of bass horns is not lost on me.

Last edited by doug20; 29th May 2011 at 11:23 AM.
  Reply With Quote
Old 29th May 2011, 11:45 AM   #549
doug20 is offline doug20  United States
diyAudio Member
 
Join Date: Mar 2009
You can add this 6.5" anarchy tapped horn (flat pack option) to the list of great bass horns.

Group Buy for 6.5" Anarchy Tapped Horn. - AVS Forum

HORNS do offer a GREAT VALUE!!
  Reply With Quote
Old 30th May 2011, 08:00 PM   #550
diyAudio Member
 
Join Date: Mar 2005
Location: MI
Quote:
Originally Posted by doug20 View Post
Define a small room?
Less than 50' or so in any given dimension, I'd guess.
  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
smith horns and using compression horns for a Karlson party speaker project bikehorn Multi-Way 14 30th January 2013 05:20 PM
Horns inside of horns open foe discussion oilcanracer Multi-Way 3 15th February 2010 03:42 AM
Compression drivers in horns or waveguides 454Casull Multi-Way 6 1st December 2008 12:41 PM
Phase plug necessity in horns/waveguides 454Casull Multi-Way 3 18th September 2005 07:36 PM
Horns: Vibrations and resonances in metal horns Rocky Multi-Way 10 28th July 2004 01:38 AM


New To Site? Need Help?

All times are GMT. The time now is 09:26 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