Cheap tweeters for a 15" woofer. - Page 3 - diyAudio
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Old 5th January 2014, 08:35 PM   #21
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I like chris661's idea. Sometimes just making it work is what you are after. I have a drum monitor with an 8 and tweeter that I hook up to my phone for the garage and its perfect. To address your idea of adding an 8 or 10, heres a somewhat low priced solution.

make two cabinets
each with an 8" woofer and tweeter and an internal crossover

(8") Dayton Audio DC200-8 8" Classic Woofer | 295-310
(tweeter) Selenium ST200 Super Tweeter | 264-348
(crossover) Dayton Audio XO2W-2K 2-Way Crossover 2,000 Hz | 260-140
later you can add a pass coil to take you 8" up higher to 100hz above the sub.

Run these off your home amp

Change the single 15" running 0-2KHZ on a pro amp to 0-100hz

Done and will get really loud and have great seperation.
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Old 5th January 2014, 08:58 PM   #22
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Quote:
Originally Posted by tkroeker View Post
I like chris661's idea. Sometimes just making it work is what you are after. I have a drum monitor with an 8 and tweeter that I hook up to my phone for the garage and its perfect. To address your idea of adding an 8 or 10, heres a somewhat low priced solution.

make two cabinets
each with an 8" woofer and tweeter and an internal crossover

(8") Dayton Audio DC200-8 8" Classic Woofer | 295-310
(tweeter) Selenium ST200 Super Tweeter | 264-348
(crossover) Dayton Audio XO2W-2K 2-Way Crossover 2,000 Hz | 260-140
later you can add a pass coil to take you 8" up higher to 100hz above the sub.

Run these off your home amp

Change the single 15" running 0-2KHZ on a pro amp to 0-100hz

Done and will get really loud and have great seperation.
Well most of that sounds good but why can't I have the 15" go higher? With this 15" alone I have more oomph in the mids than I've ever heard, I wanted to let it be free up to 1 or 2KHZ and I don't understand how that might heart?

Also, most of that is more than I wanted to spend, especially the crossover. I don't want to blow $60 out the window just on crossovers, plus the active one in front of the bi amps.

Thanks for your help though everyone, we're getting somewhere.
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Old 5th January 2014, 09:08 PM   #23
tinitus is offline tinitus  Europe
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Quote:
Originally Posted by TheTubeAmper View Post
Why can't I have the sub do from 2KHz down ...
you can, if you place your 'satelites' on top of the woofer cab
but maybe 2khz is a bit too optimistic

Quote:
Originally Posted by TheTubeAmper View Post
... and then have some tweeter do the rest, or possibly two tweeters do the rest?
maybe 6", with bullet tweeter, crossed around 5khz (maybe)

and better think active right away
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Old 5th January 2014, 09:19 PM   #24
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Originally Posted by TheTubeAmper View Post
I don't want to blow $60 out the window just on crossovers.
that money could almost buy you this speaker
its a 12" woofer with 3" 'tweeter cone'
I think it looks quite clever
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Old 5th January 2014, 11:30 PM   #25
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Originally Posted by TheTubeAmper View Post
Well most of that sounds good but why can't I have the 15" go higher? With this 15" alone I have more oomph in the mids than I've ever heard, I wanted to let it be free up to 1 or 2KHZ and I don't understand how that might heart?

Also, most of that is more than I wanted to spend, especially the crossover. I don't want to blow $60 out the window just on crossovers, plus the active one in front of the bi amps.

Thanks for your help though everyone, we're getting somewhere.
15"ers run into serious cone break-up to get to a couple of kHz, and the frequency response will only get more ragged the higher you go**. You simply can't have a rigid piston that big at those frequencies without extreme compromises elsewhere. Our current materials won't allow it.

** I'd say a couple of kHz is about the limit of what a 15" ought to be asked to do. I'd aim to cross as low as the compression driver will comfortably stand. Almost all of them will stand 2.5kHz at loud levels. More expensive ones will hit 900Hz or so, but could well be out of your price range.

The big question here, is this: what exactly do you want?

We know you like this driver, so lets make sure that gets used.
Do you want a pair of speakers for stereo, or is mono okay?
Can you get another woofer like it?


If it was mine, I'd set off with that driver plus a compression driver, and see how it sounds.

Then move to a stereo pair if that's what's wanted.

Then add a 6" PA midrange driver to cover 500Hz-3kHz. That'd give the compression driver an easier time, and widen up dispersion in the hundreds of Hz.

Chris
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Old 6th January 2014, 04:09 AM   #26
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Designing a PA with a flat response is no small feat, PA drivers are designed for efficiency and power handling first and the stiff light cones usually come with resonances that are difficult to notch out. Crossovers that accomplish this can be complicated and expensive, this one reason active PA speakers are good way to go.

If you are using this for home and not driving the snot out of it a decent dome like the Vifa DX25T may be robust enough. Like the others have said the off-axis output usually suffers on a 15" above 1500hz which is why I recommended the cheap MCM that you can x-over at 1000hz.
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Old 6th January 2014, 04:32 AM   #27
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Quote:
Originally Posted by tinitus View Post
you can, if you place your 'satelites' on top of the woofer cab
but maybe 2khz is a bit too optimistic



maybe 6", with bullet tweeter, crossed around 5khz (maybe)

and better think active right away
If I have only mono than yes the satellite will be on top of the woofer or right next to it, if stereo the satellites still won't wander more than 8ft.

Quote:
Originally Posted by mr. doom View Post
Designing a PA with a flat response is no small feat, PA drivers are designed for efficiency and power handling first and the stiff light cones usually come with resonances that are difficult to notch out. Crossovers that accomplish this can be complicated and expensive, this one reason active PA speakers are good way to go.

If you are using this for home and not driving the snot out of it a decent dome like the Vifa DX25T may be robust enough. Like the others have said the off-axis output usually suffers on a 15" above 1500hz which is why I recommended the cheap MCM that you can x-over at 1000hz.
Well there's no way I'm going with active speakers.

Yes I'll use these in a small room at home 99% of the time, however I LOVE loud music, I want to be able to push everything for hours at a time, and I'd like to be able to pretty much max everything for hours at a time in case I ever do go to a friends or have a party or something.

So the update to what I'm thinking is like this:

1x 15" woofer running 0-1KHZ on a pro amp

1x or 2x satellite boxes with:
6-10" midrange woofer running 1-5KHZ
SuperTweeter/BulletTweeter running 5KHZ-on up

The tweeter I'd like to use is the Selenium ST200 Super Tweeter | 264-348 because of a few reasons, it's JBL, it's 105dB, its 8ohm, however I'm not sure how far 70watts on that will carry me.

The problems with the Vifa that I see are that its 4ohm and that it is more delicate, and that its only 96dB.

These are a bit more expensive, however, if you guys can convince me that both of these would be the best option
Pyle PDS182 1.5" Titanium Horn Driver 8 Ohm | 292-2618
Goldwood GT-400PB 1" Horn 1-3/8"-18 TPI | 270-095
I'll definitely consider it because it seems to have the best of everything, durability, 103db, 8ohms, and a big 120WRMS, not to mention it looks professional (I like to show off my stuff )

Not sure as far as the midrange woofers go, found these but they might be junk: Pyle PDMW6 6-1/2" Mid-Woofer | 292-204

Let me know what you guys are thinking, I appreciate all of the help.
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Old 6th January 2014, 05:40 AM   #28
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The selinium tweets are really loud.
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Old 6th January 2014, 06:53 AM   #29
tinitus is offline tinitus  Europe
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I don't know
there could be a few lucky ones
but in general, I'm afraid the very cheap PA drivers are crap

it may be possible to find a good one
but that means a lot testing different drivers
probably cheaper to just buy a proven good one right away
maybe Eminence or FaitalPro


Quote:
Originally Posted by TheTubeAmper View Post

Well there's no way I'm going with active speakers.
how much do you know about crossovers, in general ?
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Old 6th January 2014, 11:11 AM   #30
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Quote:
Originally Posted by tinitus View Post
I don't know
there could be a few lucky ones
but in general, I'm afraid the very cheap PA drivers are crap

it may be possible to find a good one
but that means a lot testing different drivers
probably cheaper to just buy a proven good one right away
maybe Eminence or FaitalPro


how much do you know about crossovers, in general ?
I'm not interested in wasting money to pay for a brand. Besides, what's wrong with the selenium tweeter, it has a JBL logo?

When I said there's no way I'm going for active speakers, I was tired and meant powered speakers.

I know enough about crossovers, not that much to know about them anyway. I definitely do want to do active crossovers so I can have a bi or tri amped configuration.
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