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Multi-Way Conventional loudspeakers with crossovers

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Old 30th July 2010, 06:08 AM   #6881
ra7 is offline ra7  United States
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Hey Lynn,

Thought this might interest you: Plasma tweeter
vetruvioaudio.com



Anyway, this thread is a goldmine! Great thoughts, great posts!
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Old 30th July 2010, 09:21 AM   #6882
Elias is offline Elias  Finland
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Hi,

Quote:
Originally Posted by dantheman View Post
Elias, does sound reproduction with less reflection lead to perceiving less detail? I thought the research showed that the other way around--at least as far as intelligibility is concerned.
No, it is like you say. Less reflections => more detail.


Quote:
Originally Posted by badman View Post
Except that they're still intelligible in the horns at extremely low level.

Quote:
Originally Posted by Lynn Olson View Post
I agree with Badman. Intelligibility of song lyrics is a pretty simple criteria: either they're easy to understand or not. Some speakers do well at low levels, and others do not.

Electrostats and horns do well at intelligibility at low levels, and other types vary.

Because of the usually high directivity of these speakers.


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Old 30th July 2010, 10:49 AM   #6883
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Quote:
Because of the usually high directivity of these speakers.
Hello Elias

Not all horns have high directivity. I wouldn't call a 100x100 patern high directivity. Even then they still have excellent dialog intelligibility. It helps but I think there is more involved than just directivity. It just might be the horns couple to the air better than some cones and you get more detail. Look at the horn mouth area compared to say a 1" dome. Same with electrostatic panels.

Rob
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Old 30th July 2010, 02:38 PM   #6884
mige0 is offline mige0  Austria
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Quote:
Originally Posted by ra7 View Post
Hey Lynn,

Thought this might interest you: Plasma tweeter
vetruvioaudio.com



Anyway, this thread is a goldmine! Great thoughts, great posts!
Nothing for kids an pets - and not taking care about O3 pollution as far as I can see...

Nice looking though - sort of "cookers for the tent" style.

Michael
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Old 30th July 2010, 03:14 PM   #6885
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Who would have thought that Alnico magnets, tube amplifiers, and paper cones with pleated surrounds would ever become "exotic"? All those came standard with every TV, radio, and hifi system back in the Fifties.Mr Olson,
Luckily, there are still some driver manufacturer (Accueil)
that still use these principles and the next generation is continuing the work.
They were low qts, high efficient drivers that enable the use of low power tube amp that
had high output impedance , no negative feedback. Combine this with full range
no crossover and the principle of less is more kicks in.
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Old 30th July 2010, 03:34 PM   #6886
soongsc is offline soongsc  Taiwan
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Quote:
Originally Posted by mikey_audiogeek View Post
How long before CRT TV's become "exotic"?
I still think the Proton 25" that I has was really hard to beat. Even though the resolution nowadays is higher, color really leaves a lot to be desired.
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Old 30th July 2010, 04:50 PM   #6887
mige0 is offline mige0  Austria
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Quote:
Originally Posted by soongsc View Post
I still think the Proton 25" that I has was really hard to beat. Even though the resolution nowadays is higher, color really leaves a lot to be desired.
Go and try plasma - not in a shop preferably...

Michael
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Old 30th July 2010, 04:53 PM   #6888
mige0 is offline mige0  Austria
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Quote:
Originally Posted by Salas View Post
A Tivoli does speech OK too.
Shift its boxed speaker to OB and I'd be surprised if its not even more close to golden vintage sound


Last edited by mige0; 30th July 2010 at 04:55 PM.
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Old 30th July 2010, 07:50 PM   #6889
g3dahl is offline g3dahl  United States
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Here's the TD15M-8A measured at 1 meter, off axis in 15 degree increments from 0 to 90.

Test setup is shown. I hung batts of Bonded Logic insulation on each side of the speaker.

Gary Dahl
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File Type: jpg TD15Moffaxis.jpg (177.0 KB, 425 views)
File Type: jpg TestSetup.jpg (902.2 KB, 406 views)
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Old 30th July 2010, 07:56 PM   #6890
g3dahl is offline g3dahl  United States
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Here's the frequency response and distortion from the above setup, 1 m on axis.

I'm no expert when it comes to using ARTA. If anyone wants to tell me how to get better data, feel free!

Gary Dahl
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File Type: jpg TD15Mdist.jpg (174.8 KB, 371 views)
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