Center Channel Project finished after nearly a year of work. - 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 28th November 2005, 03:58 PM   #1
diyAudio Member
 
kingdaddy's Avatar
 
Join Date: Mar 2002
Location: Fort Worth, Texas
Default Center Channel Project finished after nearly a year of work.

Cant find my old thread, so I'll repost.

Like most of my projects, I seem to take way too much time trying to find the proper hardware or a method of doing something wacky. The time spent isnít really indicative of the difficulty, just a product of my finicky attitude and desire to do things that no one else would do, plus I always do at least a few prototypes and spend some time listening before I proceed.

The fit and clearances along with the proper hardware for the gimble assy was probably the hardest part of the project, although I now have an even deeper appreciation of the difficulty in aligning grains and matching different pieces of wood together to give a homogenous look. Working with hard and soft woods mixed is another challenge that I find very frustrating at times, especially on a lathe. The full adjustment range exceeds 6 inches at the rear-articulating ball assy, which on second thought was probably the single most difficult to devise and construct. The adjustment can allow close to 30į of angle on the mid/woofer cabinets relative to the tweeter pod. Every part can be removed and broken down like a gun, each mid enclosure pivots on a spring loaded pin that fits into a receptacle and can be depressed for removing the enclosure from the gimble mounting ring once the top thumb screw is removed. Everything is solid Oak or painted MDF to match my mains. The tweeter pod is easily removable with a ľ -20 bolt behind the faceplate.

The prototype has been up and running for months so I have tweaked the sound to satisfying results already, these little woofers will pack a whallop for their cone area, but a little overprices IMO. Next time a do a set of mains I will more closely consider the cost of the drivers, these nearly broke me.

Woofers- Scan-Speak 8530-K01S
Tweeter- Vifa XT-25 with custom faceplate.
Crossover- Marchand XM44-4 (2.6K 4th order)

Woofers are paralleled (2-way) and powered by the Halo A-52 and a separate channel to the Tweeter. The inside is stuffed with poly batting (4oz) and the inner walls are lined with the same tar slurry goop that I have been using for a while now, total weight for the speaker assembled (without stand) is about 55Lbs. This is about as baffle-less as you can get, which has been my goal for some time now so I think I can move on to other designs finally, OB will be next. Total cost is hard to calculate but I would guess about $750.

Pictures,
http://kingdaddy.linaeum.com/Center%20Channel/
Attached Images
File Type: jpg home place small.jpg (53.6 KB, 604 views)
__________________
http://kingdaddy.linaeum.com/
  Reply With Quote
Old 28th November 2005, 04:03 PM   #2
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: Near Vancouver
Another stunning piece of work from kingdaddy. Nice going.

You know, if you'd put the tweeter under the woofer you would have made a face.
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 28th November 2005, 05:17 PM   #3
diyAudio Member
 
Join Date: Jun 2005
Location: West London
WOW. !!!!!
  Reply With Quote
Old 28th November 2005, 07:55 PM   #4
diyAudio Member
 
Join Date: Feb 2001
Location: Mars
  Reply With Quote
Old 28th November 2005, 10:02 PM   #5
diyAudio Member
 
David Gatti's Avatar
 
Join Date: Mar 2004
Location: Melbourne, Australia
Great to see such an eye-catching, original design.
  Reply With Quote
Old 28th November 2005, 10:29 PM   #6
diyAudio Member
 
Jerry T.'s Avatar
 
Join Date: Oct 2003
Location: 6 floors up! In Holland!
So it took you nearly a year to build a centerspeaker, and this is all you could come up with?

Oh man is this a beautifull speaker, i could fiddle around for ten years and still wouldn't have build anything that comes close.

Jerry T.
__________________
Now, ain't that grand !
  Reply With Quote
Old 28th November 2005, 11:54 PM   #7
diyAudio Member
 
kingdaddy's Avatar
 
Join Date: Mar 2002
Location: Fort Worth, Texas
Thanks guys.

Still trying to figure out a good way to measure the lobing differences from my seating position with the woofer enclosures toed to each extreme, I'll post some if I can figure it out, or if it even makes enough a difference to bother.
__________________
http://kingdaddy.linaeum.com/
  Reply With Quote
Old 29th November 2005, 07:59 AM   #8
j.burtt is offline j.burtt  United States
diyAudio Member
 
Join Date: Sep 2005
Location: North Texas
Very impressive work on the cabinets of the entire system.

How do you like the Marchand XM-44? I just received my 3-way kit and will be building it in the evenings on my next business trip.
I am also interested in your thoughts on the XT-25 tweets. I am considering them in my next project.

I have 3 different 3-way setups I am considering for my main speaker project.

1. Scan Speak 9700 or 9800 tweeter. Scan Speak 15W/8530K01 mid/woofer. Dual Scan Speak 8" 21W/8555-01 woofers.

2. Vifa XT-25 tweeter. Vifa PL-18wo09-08 mid/woofer. Single Dayton RSS265HF-4 10" Hi-Fidelity woofer.

3. LCY 110 or 130 ribbon tweeter. Seas Excel W18EX-001 mid/woofer. Dual Seas 8" W22EX-001 woofers or a single 10" W26FX-001 woofer.


I be will actively triamping with the Marchand XM-44 and (2)Pass Labs X-5's(10 channels of amplification).
  Reply With Quote
Old 29th November 2005, 01:48 PM   #9
diyAudio Member
 
kingdaddy's Avatar
 
Join Date: Mar 2002
Location: Fort Worth, Texas
I have done a few kits from Marchand, and I think the XM-44 is the best crossover yet from Phil Marchand, very versatile and quite. I like the XT-25 Tweet a lot, for the price I donít think you can do better, their very detailed and fairly easy to work with.

Good luck on your project j.burtt.
__________________
http://kingdaddy.linaeum.com/
  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
MTM center channel project Deagle50ae Multi-Way 23 15th March 2005 05:54 AM
Decided first project to be center channel tacomaboy Multi-Way 25 17th January 2004 07:17 PM
Finished my Maelstrom Sonotube after almost a year of work kingdaddy Subwoofers 20 10th January 2004 11:03 PM
New Center Channel Project scooterdog Multi-Way 0 30th March 2003 07:44 PM
Center Channel project ssurban Multi-Way 2 8th January 2003 02:19 AM


New To Site? Need Help?

All times are GMT. The time now is 12:52 PM.


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