Gradient Revolution

Original owner black Gradient Revolutions. Consistently win best of show awards, an iconic speaker design that produces near perfect sound in any room thanks to the cardoid coax and rotatable dipole woofers. This pair has 4 new woofers, services was performed 1 yr ago by Gradient USA, you can see lacquer is in great shape. 
Located in Los Angeles, happy to audition for anyone here.
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--  Enjoy the Music   The Revolutions have open-baffle, dipole bass and a coaxial
mid/tweeter that is enclosed in a unique way, so it directs 98% of their sound
towards the listener, minimizing room interactions.   The bass in this room was perfect... impactful, but not
boomy, and fast. There is a section in "The Real Blues" where Ray
Brown plays a fast run down to the low E, slapping the strings all the way.
This tight combination of high frequency and low frequency information is a
mess unless the bass is lightning quick, and I didn't hear it played better on
any system at the show.

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Robert E Green

I suppose it’s clear that I really like these speakers, but my admiration goes far beyond simply liking how they sound. To me this design represents a fundamental improvement over most others by directly and successfully treating the problems of room and speaker interaction. In my experience, the resulting immersion in the originally recorded soundfield is otherwise only available in “near-field” listening. Anyone with serious audio interests ought to listen carefully to the Gradient Revolution for the pleasure of it, and also to hear what is possible when a speaker can “ignore” the room around it. You can spend far more money, but you are unlikely to find a speaker (without any special signal processing) that does anywhere near as good a job of taking you to the concert hall. And that is where you want to go, isn’t it?

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Part Time Audiophile

Nice story, yes, but what you should take away from that is
that these “bass systems” are fast. Another thing: dipole bass, as Tim
explains it, puts 2/3 less energy into the room for a given SPL — which makes
it easier to avoid over-loading (i.e., booming), and would go a long
way to explain the stunningly good bass in the Waldorf room all three days of
the show. So — want 20Hz? Gradient’s got it, no sweat, all day long — and with
no room correction. 

The sound in the Gradient room, with everything running, was
quite simply unrivaled at this show.