Eames Quadreflex

[jlsem]

Anybody with any info on these? I'm particularly interested in a plan or scale drawing.

http://www.hifilit.com/hifilit/Steph...adreflexA1.jpg

Thanks,
John

[Pano]

Wow, cool. Had no idea that Eames had done speakes.
Looks like a sort of back loaded horn - on a chair base. My wife would love those.

[jlsem]

So does mine. That's why it's important for me try and build some. I already have the Tru-Sonic 206 AXA drivers.



John

[Pallas]

It's very nice-looking (I'm a midcentury modernism fan) but as a practical matter it also looks like that cabinet will have lots of diffraction issues due to the sharp edges so close to the coax.

[Pano]

Nice looking drivers.

12 or 15 inch?

[jlsem]

They are 15" with a compression driver in the middle with a 1" throat. The link in the first post shows the 12" version. I'm looking for pictures of the larger version.

John

[Empee]

Hi There !


I'd like to dig up this old thread, as I got permission to build a pair for our living room (waf )

Is there anyone who knows more of these cabs ?
maybe drawings or detailed pictures ?

Or would it be best to design something new that would look like the outer form ?


Cheers,

Empee

[picowallspeaker]

Modern designs take into account all the errors made in the past .
I see now the drivers are better off the median axis of the cabinets , as a non centered-in-the-very-middle of the baffle gives an opportunity to early reflections from the baffle to be spread not uniformly due to the varying distance of the driver from the boards .
Also ,in that design which may remind a sort of 'Onken' for the bass load , the baffle is quite un-existent ...

[Empee]

Hi Pico,


Thanks for your comment!

I fully agree about the errors of the past.
Still, there are numerous speakerbuilders who still use centrered speakers and
razorsharp cabinet edges

And really, even with these shortcommings, some speakers really sound very, very good.


But the question about the Quadraflex remains:

is it a bass reflex ?
is it a horn ?
is it some sort of aperiodic box ?
or maybe even a closed box inside a nice looking shell ?


Who is to enter a museum armed with some screwdrivers and measuring tape ?



Empee

[picowallspeaker]

For me the major issue of that design is at a pure physical matter< the driver has an halo of emission around that somehow interferes with the quasi- spherical point source represented by the woofer> and may end in confused sound....what about central speaker of an LCR system ?