4" (3.5"-5") high efficiency wanted please

[adason]

Originally Posted by sumaudioguy

If someone has a favorite high efficiency tweeter please link that also

I have used recently in two project this selenium supertweeter:
Selenium ST200 Super Tweeter | Parts-Express.com
Its not a pro driver, its real HiFi tweeter, high efficiency, excelent flat response, pleasing sound. And its cheap, even on sale now!
ed

[ScottG]

Originally Posted by badman

I've used their big brother, which is a kicker mid, as dynamic as they come. But gee what a pricetag on this one!

True, but it's nutty what the motor has to do to it's VC. As one person mentioned in this forum - the motor is so strong that it made their hands numb when holding it.

Considering what it is, it's a freak'n bargain.

[ScottG]

Originally Posted by sumaudioguy

Am barely considering a 6" but that gets kind of big and problematic for this particular design. Satellite size needs to be pretty small.

Thanks everyone- keep it coming.

=SUM

That's a bit different..

If you want to do it on the cheap (but good):

Because the tweeter is 4 ohms, consider 2 of these in parallel (+6db):

http://www.parts-express.com/pe/show...number=295-010

(..the driver spacing and resulting combing could even cancel out some of the nastier higher freq. response.)

The next closest driver to the 4" Max Fidelity is this:
FaitalPRO - Neodymium Professional Drivers


Similar to the Atlas Sound ceiling speakers are the Altec CF404-8A and CF2048A.

[Flaesh]

what is
"Sensitivity (Peak)" misprint?
(Atlas fc104 datasheet)

[Flaesh]

Originally Posted by sumaudioguy

..Here is the tweet ..Vifa DX25TG09-04 1" Fabric Dome Tweeter | Parts-Express.com

http://www.parts-express.com/pdf/264-1020s.pdf - "Sensitivity (2.83V/1m) 93.5 dB"

[sumaudioguy]

Flaesh- thanks for the link. Actually the tweeter of post #1 is 96.5dB for 2.83 volts. The wrong data sheet is given for that tweeter which parts-express is correcting.

Also, because no driver is "flat" frequency response sensitivity varies depending on frequency and/or frequency band used to determine the sensitivity. In this case it is the 94dB point on the frequency response graph.

Adason- that super tweeter looks very interesting. Thanks. It made it to the final group of possibilities. Selenium makes a lot of stuff and have conferred with them and they are very helpful. Will check Selenium carefully.

planet10- Checked the specs on that Pansonic EAS-12PM99SA and it is indeed rated 99dB for 1 watt. I cut the back off which drops the resonance to 80Hz from around 250Hz. Used several in guitar practice amps with 20 watt amplifiers and tiny cabinets. Like the Pigmy (?) guitar amp except way louder and cleaner. Many people were surprised by this setup.

Thanks to all contributors. Progress is made.

[sumaudioguy]

Example AUDAX midrange 94.5dB Fs 56Hz

[catapult]

Originally Posted by sumaudioguy

Example AUDAX midrange 94.5dB Fs 56Hz

Pretty typical specsmanship. Look at the actual SPL curve and it'll be about 88dB once you get it flattened out with the crossover. Add any baffle-step compensation and you'd lose a few more dB but that may not be needed if they're mounted on/near a wall.

[sumaudioguy]

Here is the factory graph for that panasonic referenced earlier. Factory says 99dB. My measurement technique gave 97.5dB with the back off in a larger box. Drive is 2.83 volts RMS for the graph. Fs in larger box is 80Hz.

Why are there so few to no drivers like this one anymore? I would rather put 10 watts into a 97.5dB driver than 100 watts into an 87.5dB driver. Both play the same SPL so why use a watt sucking driver? A few very expensive ones have been located. This panasonic was under $20 at the time.

[MethMan]

What abou horribly expensive FANE 5MN?