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One look and you know this is no ordinary speaker. The flowing, liquid lines of the Muon reflect the highest artistic expression, and rightly so—after all, it was created by renowned designer Ross Lovegrove for pre-eminent British speaker manufacturer KEF.

The Muon's sensuous shape arises from a convergence of Lovegrove's design aesthetic and the physics of sound. The first prototypes were milled from solid blocks of aluminum, which took a full week to complete. Production units are fabricated from 6mm-thick aluminum using a process similar to vacuum forming to mold malleable sheets of heated metal.

This 4-way super speaker includes four 9.8-inch bass drivers on the front and two more on the back to control low-frequency room effects. Also on the front is one 9.8-inch low-midrange driver and one Uni-Q point-source driver that combines a 6.5-inch midrange and 1-inch tweeter in the company's signature coaxial array.

KEF's Acoustic Compliance Enhancement (ACE) technology improves the low-frequency performance of this sealed-box speaker by filling the cabinet with activated charcoal. Tiny holes in the porous particles act like alveoli in the lungs, absorbing and releasing air molecules as the drivers move in and out. This effectively doubles the internal volume and lowers the bass extension accordingly.

All this firepower yields a maximum sound-pressure output of 118dB and a typical in-room frequency response from 25Hz to 60kHz (3dB), with a low-frequency extension down to 20Hz (-6dB). Subwoofers? We don't need no stinkin' subwoofers!

Only 100 pairs of Muons will be made and sold for $165,000—and don't forget to double that for a 4.0 surround system. A center-channel speaker is superfluous thanks to the Uni-Q's wide, seamless coverage throughout the listening area, which can be used to create an effective phantom center.

As a statement product, the Muon is certainly worthy of Raymond Cooke's dream when he founded KEF in 1961. Cooke envisioned a speaker company with a flair for the unusual and controversial, ideals that are clearly embodied in the Muon. Now, all that's left to do is determine where you're going to put these 250-pound sonic sculptures.

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COMMENTS
Ted's picture

Absolutely beautiful. Prime example of form and function. Gorgeous.

John Conner's picture

Looks like a T9-6400 transmorphigmizing into a hot babe!!!

Noah Katz's picture

Technical error: "This effectively doubles the internal volume and lowers the bass extension accordingly." The only way this is possible is if some of the air is "sidelined" by changing state to liquid or solid, which I doubt is the case. Otherwise the maximum possible is about 40%, if all of the heat of compression is absorbed, with 20 to 25% being more practically acheivable.

jeff henning's picture

With all due respect, this is a hack job. All of these images were available when the Muon was first introduced as was all the basic info. This is is a rehash of Muon info from the last CES. So, did KEF need some PR to move a few unsold Muon's? Reviewing this post, I'm struggling to come to another conclusion. Perhaps, next, you can tell us how we can't truly enjoy listening to music unless we pay $400/ft for Nordost speaker cables. Oh, sorry, you've already done that! Outside of the reviews with measurements, this site sucks as does the magazine jeff

Jerry's picture

That was just plain nasty and disrespectful, and not necessary. Another disgruntled Bose owner. We told ya not to buy 'em bud.

Scott Wilkinson's picture

Thanks for your support, Jerry! Jeff, if you think this site sucks, by all means take your eyes elsewhere; no one is forcing you to visit. In fact, I'd prefer that you not return if you're going to post mean-spirited crap like this. I welcome any and all real comments (I delete any spam I find), but I would certainly prefer it if everyone was respectful and not nasty as you were here. My intention with this blog is to present ultra-high-end A/V products that are really cool. The entries are not reviews, but profiles based on information provided by the companies. It's supposed to be drool-worthy eye candy just for fun. So what if a product isn't brand new? It's still cool, isn't it? And maybe my perspective might be a little different than the first people to cover it. I love to hear from you whether you agree with me or not, but please, let's keep it civil.

Scott Wilkinson's picture

BTW, I've never said that one can't enjoy listening to music without paying $400/ft for cables. In fact, I've often said that spending that kind of money on cables is completely unnecessary in my opinion. Also, there is no magazine that corresponds to this website. There used to be, but it's long gone. Let's at least get the facts straight, shall we?

Scott Wilkinson's picture

Noah, you may be right that the effective volume does not double. This is what the company claims, and I should have examined that claim more carefully. I will look into the physics of the situation and post what I learn here. Thanks for keeping me on my toes!

Bruce in CO's picture

Cool doesn't begin to describe these. I would be surprised if Mr. Lovegrove wasn't thinking of Kate Winslett or Elizabeth Hurley when he penned these beauties.....A lovely classic will always be a lovely classic. Is Mar ilyn Monroe or a '56 Corvette any less beautiful today than 50 years ago? Not in my opinion. Scott, keep them coming. There are enough of us who appreciate the art as much or more than the science.

Gregor Samsa's picture

Did you ever notice that the nastiest, slimiest, most dripping-with-invectivest remarks start with "No offense intended..." or "With all due respect...". Similar strychnine can also be identified with the suffix "Just kidding".

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