Steve Guttenberg

Krell's new Resolution Series speakers are all about pure hedonistic pleasure. Think of them as the speaker equivalent of a fire-breathing, 500-horsepower Dodge Viper SRT/10. But hold on a sec: The Resolutions are more than an exercise in brute force engineering. Their manifest also includes incredible precision, hyperclarity, and ultra-low distortion. Forget the Viper; the Resolutions are closer to a Porsche 911 GT3.

Take a close look at the new Tannoy Sensys DC speakers. Notice anything unusual? Anything at all? I suppose that little gray pod sitting atop each speaker will catch your eye first. It's home to a SuperTweeter that's designed to extend the speaker's response out to a range that only dogs and bats can hear, claimed to be all the way up to 51 kilohertz. Look again and scrutinize the 7-inch woofer with bull's eye circles in its center; that's another, albeit standard, tweeter. Tannoy dubbed their "tweeter inside a woofer" design as Dual Concentric, a hallmark of the company's upper-end speakers that dates back to (gulp) 1948. Dual Concentric is a really big deal because it generates minimal off-axis phase shifts over its nearly full-range frequency response: High and low frequencies originate from the same point. The Dual Concentric breakthrough led to a range of legendary speakers in the pro audio and high-end markets for more than half a century.

My friend Gene is a professional musician. Back in the early '80s, he used Klipsch Heresys as PA speakers in clubs. One hot August afternoon, I dropped by his Greenwich Village apartment. Just for fun, he set up the Heresys at home. Hot damn, I was absolutely floored! The first LP (remember, this was in the pre-digital era) he played was the Rolling Stones' Exile on Main Street. Oh man, I thought I knew that record inside out, but not like that—the Klipschs sounded like a mini version of a concert system. We listened at extremely high levels, easily 100-plus decibels. Gene's neighbors must have thought Mick and the boys were gigging in his apartment.

Mirage's VP of engineering, Ian Paisley, went bipolar way back in 1987. Hold on a sec, let me restate that: Paisley designed the first commercially successful bipolar loudspeaker, the Mirage M-1, in 1987. That speaker garnered raves in all of the audiophile mags and put Mirage on the map. Ah, but do bipolar/wide-dispersion speakers always produce great sound? It all depends. People have criticized some omnidirectional speakers for their overly diffuse, vaguely defined imaging. While I've never owned a set of Mirages, I've been a fan of this sort of speaker since I bought a pair of "direct/reflecting" Bose 501 speakers in '76. Hey, I was still wet behind my not-yet-golden ears, and Bose's dispersion concept caught my fancy. My Bose affair was a quickie, and I eventually settled down for a long-term relationship with a pair of Quad ESL-63 (dipole) electrostatic speakers.