Another Line Array Project - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

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 2004, 01:02 AM   #1
diyAudio Member
 
Join Date: Dec 2003
Location: FL
Send a message via AIM to Turboegt
Talking Another Line Array Project

Hello Everyone,

I have been a member here for a while but rarely post. Instead I have spend countless hours reading and trying my best to soak up as much info as I can. After all my reading Line Arrays really caught my eye.

My goal here was to build something cheap, loud and if it sounded good that would be a bonus too. I wanted something to take over duties from the Definitive Technology mains when I have people over for get together or other high volume situations.

The enclosures are 81.5" high, 12" wide and 14.5" deep. They are made out of 3/4" MDF. The enclosure was divided into two main sections: Mid section and tweeter section. This way it will be easier to seal the mids. The mid section was then divided into four subsections with 4 drivers in each. These drivers will be wired in series together (the drivers I will be using are 4 ohm). I also made braces so overall there is bracing between every other driver to keep resonance to a min. Each set of four drives will then be wired in parallel for an end impedance of 5.33 ohms. I also tried to keep the drivers as close together as I could to keep comb effect to a min.

The mid drivers I will be using are old MTX Blue Thunder 6.5" mid/midbass drivers I got REALLY cheap. They should work pretty good for my needs.

As for the tweeter section I will be using the small tweeters Apex have for $.50. I am going to using as many as I can depending on impedance and such......still working on that part.

Anyway, let me know what you think and try not to flog too badly

Attached Images
File Type: jpg dsc03330small.jpg (28.2 KB, 1657 views)
  Reply With Quote
Old 10th December 2004, 01:04 AM   #2
diyAudio Member
 
Join Date: Dec 2003
Location: FL
Send a message via AIM to Turboegt
another pic of the inside bracing and dividers
Attached Images
File Type: jpg dsc03331small.jpg (17.3 KB, 1390 views)
  Reply With Quote
Old 10th December 2004, 01:06 AM   #3
diyAudio Member
 
Join Date: Dec 2003
Location: FL
Send a message via AIM to Turboegt
Here one of my standing next to one of the towers. I am 6" tall to give you some scale.
Attached Images
File Type: jpg dsc03346small.jpg (27.6 KB, 1556 views)
  Reply With Quote
Old 10th December 2004, 01:46 AM   #4
diyAudio Member
 
Bill Fitzpatrick's Avatar
 
Join Date: Jun 2001
Location: Eugene, OR
Good construction technique but why are you standing in the dark?
  Reply With Quote
Old 10th December 2004, 01:50 AM   #5
diyAudio Member
 
Join Date: Dec 2003
Location: FL
Send a message via AIM to Turboegt
Well I really am not in the dark totally, LOL. I am a car audio/video installer by day and that picture was taken in part of the bay with some poor lighting but for some reason the flash did not go off.

I will post more pictures as things progress with these.
  Reply With Quote
Old 10th December 2004, 02:27 AM   #6
Coulomb is offline Coulomb  England
diyAudio Member
 
Coulomb's Avatar
 
Join Date: Jul 2002
Location: Ancaster, Ontario
You know between you and the speakers, there is a joke in there about piling er.. stuff that high!

Actually the cabinets look good, it is a shame you are going with cheap drivers. I would love a pair of cabinets like that to stuff with some Vifa, Morel, Scan/Speak speakers.

Oh well, I will be interested to hear your listening impressions.

Regards

Anthony
__________________
I like to stay current!
  Reply With Quote
Old 10th December 2004, 02:45 AM   #7
diyAudio Member
 
Join Date: Feb 2004
Location: Racine, Wisconsin
Fitz is quite the photo critic tonight...

You'll love them when they're done. Have you ever listened to LA's before?
  Reply With Quote
Old 10th December 2004, 04:53 PM   #8
diyAudio Member
 
Join Date: Dec 2003
Location: FL
Send a message via AIM to Turboegt
I really have never listened to any on this scale. I am really looking forward to it though.

Any other commments are welcome.
  Reply With Quote
Old 11th December 2004, 09:46 PM   #9
diyAudio Member
 
thomas997's Avatar
 
Join Date: Feb 2004
Location: Vancouver
Ive read the Apex Jr. tweeters should be great for this application.

Do you use the MDF much in cars?

btw nice work area
  Reply With Quote
Old 11th December 2004, 10:52 PM   #10
diyAudio Member
 
Join Date: Dec 2003
Location: FL
Send a message via AIM to Turboegt
Ya, the store I work at is one of the best. We have built demo cars for companies like JL Audio. Kicker, Stinger, Jensen and many others.

We use MDF in car audio everyday along with fiberglass and two part foam. With those three things we can make just about anything, any shape you need or want.

I will be ordering the tweeters sometimes this week. Should be really fun prepping the tower for all those tweeters but I think it will all be worth it.

Anyone have any thoughts on sub arrays??? Was thinking about building matching towers with 4 or 5 Dayton SD315-8-8 12" subs per tower ported. On my box program it looks pretty good in about a 2.5cf enclosure. I am not really sure what room gain would do to it thought. I am used to in-car gains, not in-room gains. Any help here would be great. Again the goal here would be good SQ, high SLP, cheap and a little on the overkill side.

Thanks for everyones positive feedback on these so far.
  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
My Line Array Project Log zobsky Multi-Way 70 20th July 2013 08:02 AM
line array loudspeaker project daly2k Multi-Way 59 2nd February 2011 04:31 PM
Line Array Project SteveNarayan Multi-Way 4 14th March 2008 05:18 AM
my first HT project.... LINE ARRAY BABY Feandil Multi-Way 10 11th March 2005 07:26 PM
Line array project VictorG Multi-Way 14 14th June 2003 08:04 PM


New To Site? Need Help?

All times are GMT. The time now is 03:45 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