which 8" driver for DIY build?

Dan308howa · 28th January 2011, 04:47 PM

Hi,
I'm building a center channel speaker that will go with my kilpsch main speakers. I need help with the woofer selection. My box will be 31 x 11.25 x 19. I will wire these in series to get a 8ohm load. They will crossover at 700hz to the mid. Here is the driver I'm thinking of using.

Eminence Alpha-8A 8" PA Driver | Parts-Express.com

Dan308howa · 30th January 2011, 05:31 AM

Nothing?

Francec · 30th January 2011, 08:35 AM

Don't be too impatient. This will give it a bump too.

hotiron · 10:20 AM

These Alphas are no use for domestic audio.
What kind of budget are you on?

Woofer Selection Guide at Parts Express

This one is cheap with great spec.
http://www.parts-express.com/pe/show...number=295-356

Dan308howa · 1st February 2011, 05:41 PM

Quote:

Originally Posted by hotiron

These Alphas are no use for domestic audio.
What kind of budget are you on?

Woofer Selection Guide at Parts Express

This one is cheap with great spec.
Dayton Audio RS225-8 8" Reference Woofer | Parts-Express.com

Since I need two 8" woofers for this project, I wanted to keep the cost around $50 each. The mid and tweeter are from a Klipsch Heresy so I was trying to get a high spl woofer.

CharlieLaub · 1st February 2011, 05:52 PM

I heard a nicely done MTM that used two Eminence Beta 8s and a compression horn tweeter, crossed at 1.2k. The efficiency of these drivers was so high that a 15W class-A amp was plenty to drive them to very "realistic" levels. Imaging was excellent.

It's speaker #9 on this page, from a recent DIY meeting in northern California:
Meet-Spring2010

-Charlie

Dan308howa · 1st February 2011, 06:34 PM

Thanks for the info! I have klipsch speakers in my home and am looking to add a new center channel. I will use the klipsch type E crossover 700/6000 along with the K-55v mid horn and the K-77 Horn tweeter. The standard K-22 12" woofer was made by Eminence, but the Heresy speaker was too large for my TV stand.

I'm running the my system with a B&K AVR507 so it has plenty of power, but then I do like it loud.

Godzilla · 07:44 PM

The Alpha or Beta 8" drivers are certainly a good way to go with your Klipsch mid/tweeter components. Not sure there is anything else out there that would even be efficient enough to work with the rest of your system. Whichever you choose should work nicely.
Good luck.
Zilla

Charles Darwin · 1st February 2011, 08:05 PM

How about this one if it is available where you are:
MONACOR INTERNATIONAL:Ergebnis

And again in english:
http://www.monacor-ost.com/catalogue...=62&SubKtg=679

30th January 2011, 10:13 AM	#4
hotiron diyAudio Member Join Date: Feb 2007 Location: Aberdeen Scotland	These Alphas are no use for domestic audio. What kind of budget are you on? Woofer Selection Guide at Parts Express This one is cheap with great spec. http://www.parts-express.com/pe/show...number=295-356 __________________ If you give up easily Dont start!! Last edited by hotiron; 30th January 2011 at 10:20 AM.

1st February 2011, 05:52 PM	#6
CharlieLaub diyAudio Member Join Date: Mar 2007 Location: California	Use Beta 8 instead I heard a nicely done MTM that used two Eminence Beta 8s and a compression horn tweeter, crossed at 1.2k. The efficiency of these drivers was so high that a 15W class-A amp was plenty to drive them to very "realistic" levels. Imaging was excellent. It's speaker #9 on this page, from a recent DIY meeting in northern California: Meet-Spring2010 -Charlie

1st February 2011, 07:41 PM	#8
Godzilla diyAudio Member Join Date: Nov 2005 Location: New York	The Alpha or Beta 8" drivers are certainly a good way to go with your Klipsch mid/tweeter components. Not sure there is anything else out there that would even be efficient enough to work with the rest of your system. Whichever you choose should work nicely. Good luck. Zilla __________________ www.zillaaudio.com/bib/bib.asp www.ZillaAudio.com Last edited by Godzilla; 1st February 2011 at 07:44 PM.

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30th January 2011, 05:31 AM	#2
Dan308howa diyAudio Member Join Date: Jan 2011	Nothing?

30th January 2011, 08:35 AM	#3
Francec Banned Join Date: Jul 2006 Location: Port Melbourne, Australia	Don't be too impatient. This will give it a bump too.

1st February 2011, 06:34 PM	#7
Dan308howa diyAudio Member Join Date: Jan 2011	Thanks for the info! I have klipsch speakers in my home and am looking to add a new center channel. I will use the klipsch type E crossover 700/6000 along with the K-55v mid horn and the K-77 Horn tweeter. The standard K-22 12" woofer was made by Eminence, but the Heresy speaker was too large for my TV stand. I'm running the my system with a B&K AVR507 so it has plenty of power, but then I do like it loud.

1st February 2011, 08:05 PM	#9
Charles Darwin diyAudio Member Join Date: Nov 2009 Location: Birmingham, UK	How about this one if it is available where you are: MONACOR INTERNATIONAL:Ergebnis And again in english: http://www.monacor-ost.com/catalogue...=62&SubKtg=679

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