DIY PA Speakers Setup (Line Aray) - Page 11 - diyAudio
Go Back   Home > Forums > Live Sound > PA Systems

PA Systems A forum for discussion of all parts of a sound reinforcement or DJ system: loudspeakers, mixers (desks) etc.

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 10th December 2012, 06:58 AM   #101
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by sudhir kumar View Post
Dear sir Apex,
I am using your design with 12 inch drivers.Response is very good with 3- way active crossover system.It is driven by your 'quasi amp for beginners' amplifier. I want to know that does it need any subwoofer filter circuit or fine with 3 way active crossover ? Also please suggest me anything suitable to cover front opening of this box.
thanks
sudhir.
Nice work, you need active crossover with high cut at 150Hz 24dB/oct and low cut at 40Hz for best response.
Regards
  Reply With Quote
Old 11th December 2012, 10:44 AM   #102
diyAudio Member
 
Join Date: Dec 2008
Location: bangalore
Default subwwofer

Nice work, you need active crossover with high cut at 150Hz 24dB/oct and low cut at 40Hz for best response.
Regards[/QUOTE]
Thanks for reply .Does your suggested circuit for subwoofer controller in mic,line eq. thread is suitable for this.
thanks.
sudhir.
  Reply With Quote
Old 11th December 2012, 04:41 PM   #103
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by sudhir kumar View Post
Nice work, you need active crossover with high cut at 150Hz 24dB/oct and low cut at 40Hz for best response.
Regards
Thanks for reply .Does your suggested circuit for subwoofer controller in mic,line eq. thread is suitable for this.
thanks.
sudhir.[/QUOTE]

Yes, it have adjustable x-over frequency and is suitable for any subwoofer.
  Reply With Quote
Old 18th December 2012, 08:46 AM   #104
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
MB15
Attached Images
File Type: jpg mb15-1.jpg (9.2 KB, 1020 views)
File Type: jpg mb15-2.jpg (6.3 KB, 992 views)
File Type: jpg mb15-3.jpg (8.3 KB, 984 views)
File Type: jpg mb15-0.jpg (11.4 KB, 978 views)

Last edited by apexaudio; 18th December 2012 at 09:03 AM.
  Reply With Quote
Old 29th December 2012, 09:12 AM   #105
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
HF Protect with 2N3055
Attached Images
File Type: jpg HF Protect.jpg (29.5 KB, 920 views)
  Reply With Quote
Old 4th January 2013, 07:06 PM   #106
diyAudio Member
 
rvrazvan's Avatar
 
Join Date: Jul 2010
Quote:
Originally Posted by hunter audio View Post
Since the rear of the driver is much closer to the mouth of the
horn, at very low frequencies it is effectively de-coupled from the
system and its radiation does not affect the total output. As
frequency increases the situation changes and the rear of the
driver begins to be coupled to the horn.
When the frequency is such that the horn is one-half wavelength
long the rear of the driver is fully coupled to the horn. The pressure
from the front and rear of the driver are of reverse polarity; a 180°
phase shift at all frequencies. The pressure from the front of the
driver (at the throat) and the pressure from the rear of the driver
(close to the mouth) are now approximately one-half wavelength
apart. This represents a phase shift of 180°. At this frequency
both the front and rear of the driver are driving the horn in phase.
When this happens the driver’s radiating surface area (Sd), as far
is the horn is concerned, had significantly increased (almost
doubled). Since the driver radiates from the front and back of the
diaphragm, this yields very different driver parameters than when
at the one-quarter wavelength resonance condition.

In real world applications where the measured SPL is comparable
for a conventional vented horn and a tapped horn design, the
diaphragm excursion of the driver is greatly reduced due to the
acoustical loading of the horn. This decrease in excursion will
translate directly into lower distortion and far higher output
capability

Suranjan

I remember palying in horn response with a weird tapped horn that looked like this and the response was very good. Never build it
  Reply With Quote
Old 18th January 2013, 07:45 AM   #107
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
2181
Attached Images
File Type: jpg 614814_10151348454504044_1021060564_o.jpg (153.2 KB, 470 views)
  Reply With Quote
Old 9th March 2013, 01:14 PM   #108
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Ported horn idea
Attached Images
File Type: jpg APEX Ported Horn.jpg (259.5 KB, 342 views)
  Reply With Quote
Old 11th March 2013, 08:02 PM   #109
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Another horn idea...
Attached Images
File Type: jpg 886989_10151395541014093_2076976109_o.jpg (156.5 KB, 181 views)
  Reply With Quote
Old 21st March 2013, 11:41 AM   #110
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Compact array
http://bmsspeakers.com/fileadmin/bms...3-14_72dpi.pdf
Attached Images
File Type: jpg Slika0326.jpg (52.7 KB, 264 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
DIY Line Array for Pa system - Driver Selection woodrowman Full Range 7 24th November 2013 12:49 PM
cheap DIY PA speakers for garage/shop? khaosman Multi-Way 6 12th September 2011 01:23 AM
PA Speakers DIY MrMagnus PA Systems 25 21st August 2010 01:37 PM
5.1 DIY kit with on PA speakers (or good & small DIY kit with PA speakers) ? jm_kzo Multi-Way 54 22nd April 2009 07:54 PM
Got my line array speakers and did a quick test setup mazeroth Multi-Way 12 24th August 2004 03:43 PM


New To Site? Need Help?

All times are GMT. The time now is 09:07 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