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Multi-Way Conventional loudspeakers with crossovers

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Old 9th February 2004, 12:53 AM   #1
snc is offline snc  United States
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Question Newbe alert.

Hi guys. Iím new here and somewhat new to DIY.
But Iím hooked. I have built a set of poorly designed TLís that I have fallen in love with.
To tell the truth there was no design involved. You see I spend a lot of time in my shop and sometimes I will grab a sheet of plywood and start cutting. Next thing you know I have a set of speakers playing. There is never any math involved in any aspect of building except to make sure I have enough wood to complete the project. I have for a long time now been listening to a set of Delta Infinity 60ís. I know, I know, mass Fi at best. But for my rather small listening area they work.
I ran across a bunch of drivers from Vifa and bought them up.

4 VIFA TC18WG-15-08 7" $20.00 total
I had lying around a couple older Vifa tweets. $0.00 total.

So the cutting began. A few days later I hooked them up to a Carver M-200t. AND WOW!!!!!
What a sound. I love them. They are still out in the garage. I go out there every night and listen to them and still after a month say WOW!!!!
I think they sound better than my 60ís If you want the specks on them just ask.

Now to the point of this post.
I want (have) to build a KILLER set of TLís.
I was looking at w-w-m-t-m arrangement. I want it to look mean just sitting there with the amp off.
So I was looking at 2 DAYTON 10" TITANIC MKIIís for the way downs
2 VIFA P13WH-00 5ís for the mids and 1 TANG BAND 28-847SAís for the upper end in each box.
They will be actively crossed and fed via 1 Carver M200-t bridged for the woofers, and one M200-t for the mids and tweets, for each speaker.

Now I could just place the order wait for them to come in, fire up the table saw and hope I get as lucky as I did with the other ones.
I have tried to follow Kings Formulas and I get cross eyed. I have been looking for an easy to use rule of thumb guide to TLs. I am finding out slowly that there is not one.

Is there anyone anywhere that does design work for a fee? Is there a group of people that get there kicks mulling over equations that make most people wish they were having a root canal instead? Or am I SOL?
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Old 9th February 2004, 02:25 AM   #2
frugal-phile(tm)
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I'm sure you'll get lots of suggestions... i really like the little Vifa P13s, i'm not a big fan of MTMs thou.

What i'd do is a set of little sats using the P13s in a bipole (sealed or TL -- the TLbs come to mind ), with a better tweeter -- the one in the TLb is perfectly matched. Then i'd put each pair of Dayton 10s in a little "cubish" push-push aperiodic box.

This might not give you the visual stun factor you are suggesting, but it has the potential to sound alot better.

dave
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Old 9th February 2004, 03:55 PM   #3
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Sounds like a classic case of "newbie-itis". I'm still trying to recover from my bout. I would suggest some reading before making a big purchase of drivers.

http://members.aol.com/pjay99site/speakerhome.html

http://www.decware.com/new%20site/mainmenu.htm

http://www.nutshellhifi.com/library/...r-design1.html
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