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-   -   Driver for sealed box (http://www.diyaudio.com/forums/multi-way/111742-driver-sealed-box.html)

rho 11th November 2007 01:56 PM

Driver for sealed box
 
I'm looking for a driver to but in a sealed box. Goal is a small 2-way speaker the will be complemented with an active subwoofer. (I'd like to cross below 80Hz)
Tweeter will most probably be the B&G NEO3PDR. Amaing at x-over at 2.5kHz up to 3kHz.
Box volume of about 15liter is the upper limit.

GOWA 11th November 2007 02:10 PM

Try these
 
http://www.partsexpress.com/pe/showd...number=295-600

or

http://www.partsexpress.com/pe/showd...number=295-605

rho 11th November 2007 02:55 PM

Re: Try these
 
Those Dynavox drivers look like some odd Dynaudio drivers.
Besides that, one of the reviewers says that it performs best in a BR enclosure and the other one tells that it lacks detail.

I'll look around for some more info on these anyway.


:)

Edit: The accuton C92-6 looks like a great driver for what I'm intending to do. It's not realy within budget right now, but maybe worth saving for.
Any comments on that driver?

dre73 11th November 2007 03:42 PM

http://www.seas.no/mambots/content/f...9976f45c3f.jpg

he rho,this seems a nice one:cool:

the seas nextel w15ly001

holdent 11th November 2007 03:56 PM

Zaph documented a design using a GW M130 and Fountek JP3 here http://www.zaphaudio.com/Givler1.html. It used a 2nd-order acoustic slope at 2900 Hz. It's an interesting read because Zaph is not a fan of ribbon or planar drivers (see here http://www.zaphaudio.com/nondomes/)

I am uncomfortable with the Dynavox driver suggestions. Their Qts specs are high for a sealed box that rho specifies and they are lower in sensitivity than I'd like (the NEO3PDR is a high 93.5 db/1w/m). How about a Dayton RS150-4 here: http://www.partsexpress.com/pe/showd...number=295-372 instead?

No matter what you're likely to spend a lot of time on the crossover design and fine tuning. NEO3PDR probably should be crossed over at 3000 Hz or higher and it will be very hard to find a sensitive woofer that can be crossed that high without trading off how deep it will go.

rho 11th November 2007 03:59 PM

@Dre:

Ook in een gesloten kastje?
In BR doet ie het inderdaad erg goed, maar ik weet niet of ie diep genoeg gaat als je'm gesloten gebruikt.


Also in a sealed box?
In a BR it's a really nice driver, but I'm not sure it will go low enough in a sealed box.

rho 11th November 2007 04:13 PM

Quote:

Originally posted by holdent
No matter what you're likely to spend a lot of time on the crossover design and fine tuning. NEO3PDR probably should be crossed over at 3000 Hz or higher and it will be very hard to find a sensitive woofer that can be crossed that high without trading off how deep it will go.

You think I'd better go for a 13cm/5" or 15cm/5.5" driver and cross a little higher between tweed and low-mid?

Would it still be possible to get a nice x-over point between sub and low-mid in that case.

It's not that I don't want to spend some money on a good driver. It's that I still have some expenses coming up in the near future.
I have several sets of speakers, so there's absolutely no hurry in this project.
This means that the suggested drivers do not have to be budget drivers. I'd rather wait and save up for a really good driver then hurry and go with a less qualitative one.

tinitus 11th November 2007 07:12 PM

2 Attachment(s)
http://www.monacor.be/int/en/produkt...pr=EN&typ=full

-3db at 75hz in 15liter closed;) good Xmax makes it possible to do without highpass filter .... and its a budget bargain

rho 11th November 2007 07:42 PM

Quote:

Originally posted by tinitus
http://www.monacor.be/int/en/produkt...pr=EN&typ=full

-3db at 75hz in 15liter closed;) good Xmax makes it possible to do without highpass filter .... and its a budget bargain


Looks nice!!
Any idea where I can find some HD measurements?

The FR curve in the datasheet looks good. X-over at ~3kHz should be possible with this driver.

tinitus 11th November 2007 07:52 PM

I have never seen distortion measurements on any budget driver, I really only know of Eton, Beyma and Thiel to offer a full set of measurements


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