Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

Introducing..... The Corinthians !!
Introducing..... The Corinthians !!
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 26th August 2005, 07:01 AM   #1
Andy G is offline Andy G  Australia
diyAudio Member
 
Andy G's Avatar
 
Join Date: Apr 2002
Location: Newcastle, Australia
Default Introducing..... The Corinthians !!

http://users.tpg.com.au/users/gradds/corinthian1.JPG

Progress and naming of new fun experiment !!
12 sides tapered quarterwave pipe. !!
Drivers will be Seas T17RE + TB eyeball !

Anyone who knew about the "Conehead" saga will know how long these have been in the making ;-))

A couple more pics !
http://users.tpg.com.au/users/gradds/corinthian2.JPG

And obviously some sanding and more filler required around baffle.
http://users.tpg.com.au/users/gradds/corinthian3.JPG

Top and base to be added at some stage, hopefully not in the too distant future, but now have to knuckle down to some Uni assignments :-(

I have no idea what sort of finish I will use on these yet, suggestions welcome. A sandstone sort of finish is the obvious one !!
  Reply With Quote
Old 26th August 2005, 07:08 AM   #2
Cloth Ears is offline Cloth Ears  Australia
diyAudio Member
 
Cloth Ears's Avatar
 
Join Date: Dec 2001
Location: Melbourne, Australia
Andy,

Lotta work there. And I was just looking at an octagonal light-pole (on it's side) on the way to work today and musing how it would make an interesting enclosure shape.

Series x-over, I take it?
__________________
Jont.
"It is impossible to build a fool proof system; because fools are so ingenious."
  Reply With Quote
Old 26th August 2005, 07:19 AM   #3
Andy G is offline Andy G  Australia
diyAudio Member
 
Andy G's Avatar
 
Join Date: Apr 2002
Location: Newcastle, Australia
Series x-o ? what's that !

Yep, the drivers should work real nice with a series !!
  Reply With Quote
Old 26th August 2005, 07:14 PM   #4
squalor is offline squalor  United States
diyAudio Member
 
squalor's Avatar
 
Join Date: May 2005
Location: Redneck Riviera
Quote:
finish I will use on these yet, suggestions
If ever a speaker cried out to be painted ivory semi gloss,,,,,
Lots of molding on top too. You've done alot of work, looking good !
  Reply With Quote
Old 28th August 2005, 01:43 AM   #5
hongrn is offline hongrn  United States
diyAudio Member
 
hongrn's Avatar
 
Join Date: Mar 2005
Location: Orange County, CA
Andy,

Do you have 12 feet high ceilings for those??? Nice and very original design!

Hong
  Reply With Quote
Old 29th August 2005, 03:00 AM   #6
Cloth Ears is offline Cloth Ears  Australia
diyAudio Member
 
Cloth Ears's Avatar
 
Join Date: Dec 2001
Location: Melbourne, Australia
Andy,

Did you make those by cutting the 12 pces (for each) with just the slight taper? Or was it a bot more trial & error to get them to fit? I can never get my initial cuts to quite do this:-/

It does look as though they're going to be fairly close to 2 metres tall, is the TQWP port at the top or the bottom. You'd probably be getting "ceiling loading" if there's a port up top.

And, how many bracing pieces are you using along it's length - and are they all the same shape? You might get some interesting standing waves in a cabinet of that length.
__________________
Jont.
"It is impossible to build a fool proof system; because fools are so ingenious."
  Reply With Quote
Old 29th August 2005, 03:16 AM   #7
Andy G is offline Andy G  Australia
diyAudio Member
 
Andy G's Avatar
 
Join Date: Apr 2002
Location: Newcastle, Australia
They are actually only 6ft tall. Each piece was cut with the required taper and angle for a perfect fit. ;-) Having a radial arm saw with a 13ft sawbench does make this much easier

The port will actually be at the bottom front, and the top half of the pipe will be stuffed. Basically the same as the previous tqwt's I have made, which work very nicely.

http://www.partsexpress.com/projects...pes/pipes.html

When I had finished them, (and before cutting for the baffle) I put a hole in the top and attached the ShopVac. They are very solidly put together, and actually loaded up the shopvac making it work quite hard, also allowed me to find any small leaks !

I have yet to decide on the plinth arrangement, but I do have several hole cutouts from 12" and 15" PA speakers, which I can see may be useful for the plinth, and other smaller ones for the top.

We will see what happens as things get built !!
  Reply With Quote
Old 29th August 2005, 08:50 PM   #8
planet10 is offline planet10  Canada
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Introducing..... The Corinthians !!
Default Re: Introducing..... The Corinthians !!

Quote:
Originally posted by Andy Graddon
Anyone who knew about the "Conehead" saga will know how long these have been in the making ;-))
The coneheads live... the coneheads live (well almost).

Kudos on coming up with a less labour intensive construction technique.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 29th August 2005, 09:51 PM   #9
Andy G is offline Andy G  Australia
diyAudio Member
 
Andy G's Avatar
 
Join Date: Apr 2002
Location: Newcastle, Australia
Hi there young lad ;-)

Yep, the original method had an inherent weakness because the mdf can split too easily parallel to its surface. "The Corinthians" do not have this weakness.
I could have turned them down to a circular x-section, but they turned out so nice with the 12 distinct sides that I decided they were better that way.

So.. "Conehead" does exist, just in disguise !
  Reply With Quote

Reply


Introducing..... The Corinthians !!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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Introducing Myself - Greetings! brucedog Introductions 3 30th October 2007 03:59 AM
introducing... lecky Introductions 3 2nd May 2006 09:51 PM
Introducing Myself C.Jackson Introductions 3 19th April 2006 02:47 AM
Introducing ... Jennifer Introductions 1 27th January 2006 09:13 PM
Corinthians in underwear ! Andy G Multi-Way 12 2nd September 2005 02:49 PM


New To Site? Need Help?

All times are GMT. The time now is 12:41 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki