Design a $60,000 Speaker - Start here


Hi Everyone,

Just thought for interest I'd talk about one of the most expensive woofers in the 10-12" varieties, the Accuton AS250-88-552 CELL, actually an 11" aluminum honeycomb sandwich construction. Retail price at hobbyist volumes: $1,400, each.

In addition to the exotic material, the suspension and motor assembly are also worthy of note, as they leave a very large amount of unobstructed space directly behind the dome, allowing it to behave most ideally like a piston.

So putting this together into say a modest 3 way with all drivers from the same company and of the same level, I estimate around $6k / pair of speakers for the drivers alone. Add the normal markups, and this is a $60k speaker.

Will it sound any good? I have no idea. I just wanted to share with you all where some of these speakers that cost as much as a luxury sedan get their prices from.  Obviously, my estimates are rough, and go up and down. The point of this is just a general expose.

Best,


E

erik_squires

Showing 6 responses by soundsrealaudio

I wouldn't necessarily start with the drivers. First I would get rid of the MDF. 
Ralph
I think the implications of an aerodynamically designed speaker is foreign to most. A major goal of a good driver must be to deal with the back waves of sound. Having them bounce off the basket and back through the paper thin cone is just not acceptable. The designer should make every effort to allow those waves to easily pass all the driver components to reach the dampening material of the cabinet or the cabinet walls. 
I know of two companies that do this. Vivid Speakers and Wilson Benesch. Wilson Benesch Uses a wind tunnel test on their drivers and computer models to make sure they maximize the flow of air. I think this is real advancement in speaker design. 

Jim
Here is what Wilson Beseech is doing. 

http://wilson-benesch.com/products/endeavour-stand-mounted-loudspeaker.html

They are using two drivers in clam shell configuration. The driver that projects music/sound into the room is not facing the listener but rather the speaker. The website shows the woofer but the midrange also incorporates the same technology not the clam shell. This is what real engineering looks like, not just shiny drivers or driver coated with zircons.  

The views I represented above are really my view, and may not represent those of the masses. 


Yes. It is nice to eliminate as much crossover as possible. Crossovers are subtractive, they take away from the signal. Pay good money for an amplifier and the the damn speaker sucks out the signal. Not nice. 
I love the magazine ads that showcase the crossover. All these parts. In some cases there is more going on in the crossover as some single ended amplifiers have circuitry. They also have notch filterers to eliminate cab resonance at certain frequencies. 

Please don't get me started on active speakers. I paid big bucks for a rack to isolate my amplifiers from the resonance and now they put the amp right in there next to the woofer. 

That is remarkable.
So what kind of testing is done on the driver material. Both listening tests and tests for distortion and resonance. All these different materials, surely some must be better then others.