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Old 13th August 2010, 08:24 PM   #1
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Default PA Speakers DIY

As I moved to China I plan to get myself some good setup for a large space, lets say if I have a home party maybe up to 200 people.

I like to play loud, but I love good sound (as I am also a HiFi lover).

Buying me a setup would at first cost me not as much as expected, but this is China and most of it are copies, pretty okay copies but not as good as I want them to be.
To get a "real deal" setup would cost me big.

I have experience building HiFi before and now plan to build my own PA speakers.

What I am looking for is a fullrange speaker, having 2 x 15" and a horndriver.
I'm starting to build two, and later upgrade would be a subwoofer or two.
Amp power is not an issue.

I have been doing some research in Eminence drivers, and that is what I want to know more about. I have hear smaller systems with Eminence (as home speakers) with great joy.
Good drivers for good money as well!

Build material will be marine plywood, and they need to be transported from time to time.

Throw me some bones so I can design my boxes and get myself some drivers to put in them.

Thank You.
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Old 13th August 2010, 08:43 PM   #2
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1. Consider making it a 3 way. It may actually be cheaper that way. Consider also making it as modules. Bass in one and mid/high in another. Easier to transport.
2. Use an active XO - so much easier and you have told us you have amps. If you don't, remember that a tweeter gets mighty loud at 50 watts so it's not that expensive if you need more.
3. Estimate how loud at what distance you need and in what environment they will be played.
4. I have a number of 15" woofers and have yet to think I needed a subwoofer to augment it. 50 Hz is just fine for parties.
5. Don't worry about a supertweeter. You won't need it for parties.
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Old 13th August 2010, 09:05 PM   #3
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The Eminence Beta 8 has had some good reviews as a midrange on here before now. Pair it up with a tweeter and some 15"s, and you'll be sorted.
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Old 13th August 2010, 09:10 PM   #4
sreten is offline sreten  United Kingdom
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Quote:
Originally Posted by Cal Weldon View Post
1. Consider making it a 3 way. It may actually be cheaper that way. Consider also making it as modules. Bass in one and mid/high in another. Easier to transport.
2. Use an active XO - so much easier and you have told us you have amps. If you don't, remember that a tweeter gets mighty loud at 50 watts so it's not that expensive if you need more.
3. Estimate how loud at what distance you need and in what environment they will be played.
4. I have a number of 15" woofers and have yet to think I needed a subwoofer to augment it. 50 Hz is just fine for parties.
5. Don't worry about a supertweeter. You won't need it for parties.
Hi, If you have supertweeters, most likely after a party you won't, /sreten.
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Old 13th August 2010, 09:17 PM   #5
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Ah yes, from the land where birds are also the female of our species, a wise observation.
Maybe I can keep those tweeters during my midlife crisis by purchasing a sports car. The 4 door sedan and pick-up truck are not working out quite as planned.
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Old 13th August 2010, 09:23 PM   #6
sreten is offline sreten  United Kingdom
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hi,

Pig ugly but that can be sorted with a little re-arrangement :
Parts Express DIY Project

and i guess this is still valid :Parts Express DIY Project

rgds, sreten.
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Old 13th August 2010, 09:29 PM   #7
sreten is offline sreten  United Kingdom
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Ah yes, from the land where birds are also the female of our species ...
Hi, you have been watching The Sweeney too much ? /Sreten.
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Old 13th August 2010, 09:35 PM   #8
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Those Cum Laudes have always looked really sharp except of course for those funny looking holes at the bottom but I think that Blue Wonder should stay under the blanket till it's dark out. Pig Ugly is being kind. Them's real frugly. Scares the kiddies.

Maybe Mr Magnus should start small (price wise) and upgrade as necessary. Perhaps some cheap PA woofs, maybe a 6.5" or the Beta 8 as you mentioned and some small horns and be done with it, something like this: Probably do it for around 500 smackeroos. These are perfectly fine casual outdoor use or as you see here Earthday 2007.
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Old 13th August 2010, 09:35 PM   #9
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Some good ideas here.

Speakerplans.com
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Old 13th August 2010, 09:44 PM   #10
sreten is offline sreten  United Kingdom
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Quote:
Originally Posted by Cal Weldon View Post
Those Cum Laudes have always looked really sharp except of course for those funny looking holes at the bottom but I think that Blue Wonder should stay under the blanket till it's dark out. Them's real frugly. Scares the kiddies.
Hi,

But both can be aesthetically re-arranged to suit requirements as needed.
the Blue's as they are, are pig* ugly, so not very difficult to improve.

The point is to have sensible working crossovers rather than textbook guff.

rgds, /sreten.

*this TBH is being unfair to pigs in this case

Last edited by sreten; 13th August 2010 at 09:49 PM.
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