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Eminence ALPHA-6A [message #50617] Mon, 29 January 2007 07:57 Go to next message
dB is currently offline  dB
Messages: 234
Registered: May 2009
Master
Hi,
Wayne do you like the Alpha-6A for the voices/mid-section in a 3-Way configuration? Would you rather use another speaker or configuration. This one seems pretty reasonable to me as a 1. choice in a future next-to-do-at-home-project speaker.


Re: Eminence ALPHA-6A [message #50619 is a reply to message #50617] Mon, 29 January 2007 10:14 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18786
Registered: January 2001
Illuminati (33rd Degree)

I couldn't use it in any of my designs, but that's because I needed a lower crossover point than it would allow. It just wasn't suited for my needs. I do think it would make a great midrange in some applications.


Re: Eminence ALPHA-6A@1K [message #50622 is a reply to message #50619] Mon, 29 January 2007 10:48 Go to previous messageGo to next message
dB is currently offline  dB
Messages: 234
Registered: May 2009
Master
Many Thanks Wayne,
In my present design I'am using xover points of 900 / 1000 / 1100 Hz, maybe tuning it for 1000 Hz. Do you think I am cutting the midrange/voices a little bit here instead of going lower?
Regards.

Re: Eminence ALPHA-6A@1K [message #50623 is a reply to message #50622] Mon, 29 January 2007 11:05 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18786
Registered: January 2001
Illuminati (33rd Degree)

Absolutely. Voices start at 100Hz. By 1kHz, you're into the overtones.


Re: Eminence ALPHA-6A@1K [message #50638 is a reply to message #50623] Thu, 01 February 2007 00:07 Go to previous messageGo to next message
Cuppa Joe is currently offline  Cuppa Joe
Messages: 103
Registered: May 2009
Viscount
dB- (Pardon my butt-in, Wayne.) You can find a design for the Alpha-6A on the Adrian Mack website, at www.geocities.com/adrian_mack/homepage.html. It's a 300Hz conical horn in a 3-way system that bears some resemblance to a Martinelli design.

Re: Eminence ALPHA-6A@1K [message #50640 is a reply to message #50638] Thu, 01 February 2007 09:20 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18786
Registered: January 2001
Illuminati (33rd Degree)

When did Martinelli ever put together a conical midrange? He was making my mids for a while, but those weren'r his design, those were mine.


Re: Eminence ALPHA-6A@1K [message #50641 is a reply to message #50640] Thu, 01 February 2007 09:58 Go to previous messageGo to next message
Cuppa Joe is currently offline  Cuppa Joe
Messages: 103
Registered: May 2009
Viscount
I was looking at the 3-way system, with the 15" bass, the 6"(?) conical mid and the detached 1" woodhorn/driver combo. Sorry, I simply assumed it was a Martinelli design since it appeared on his homepage. Adrian Mack's "High Effinciency Speakers" display had a remarkably similar layout, but with the horn included within the cabinet, and the midrange device is the 300Hz conical mentioned earlier.

Re: Eminence ALPHA-6A@1K [message #50642 is a reply to message #50641] Thu, 01 February 2007 10:56 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18786
Registered: January 2001
Illuminati (33rd Degree)

Hmm. I don't know what Martinelli is doing these days, but I know he is no longer making the conical midhorn I designed. I changed cabinet shops several years ago.


Re: Eminence ALPHA-6A@1K [message #50643 is a reply to message #50641] Fri, 02 February 2007 08:54 Go to previous message
dB is currently offline  dB
Messages: 234
Registered: May 2009
Master
I think you have a 6" "High Effinciency Speakers" allready Wayne?!
Great stuff here. I knew there were some "black/secrect" projects going on. I absolutely must stay connected (if was not for exams). Now I just get nervous and excited just from enter to this Forum, if it was not from the "male and female" by Garlandgarland. Great stuff Wayne, Cuppa Joe.
Give the "tools" to the people that use them.
(measurement equipment SANWA)
http://66.249.93.104/translate_c?hl=en&langpair=ja%7Cen&u=http://www.kozystudio.com/audio/html/main.htm

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