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The Mag Amp—World’s First Switching Amp

John Devore was using this diminutive integrated amplifier, the German-manufactured Acoustic Plan Mag Amp, to drive his new high-sensitivity loudspeakers. According to Jonathan Halpern, the US importer, the Mag Amp uses a tubed voltage-gain stage and an output stage comprised of two small transformers with dual primaries. He described it as the "world's first switching integrated amplifier, and added that it was designed by Lars Lundahl in the 1960s. The 19 kg stereo chassis offers 15Wpc into 8 ohms and will cost $18,500. It played both a 1980s recording of Ella Fitzgerald and one of Stravinsky's <I>Pulcinella Suite</I> with great dynamics, speed, and detail. This is the kind of odd and fascinating gem one can uncover at the end of a day when one is too tired to rush out of an exhibit room, and instead collapses on the couch to listen.

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King's Audio King Tower

In the middle of the King's Audio room sat the omni-directional King Tower ($4500/pair). The speaker was created specifically because, according to the distributor, there was no affordable omni on the market. Paired with same substandard cabling as was the King's Audio Prince II electrostat, a $99 Philips CD player, and the mbl Noble series 4004 preamp and 8011 monoblocks, the speakers sounded quite promising. This is a speaker that needs a better source component and better cabling to fully demonstrate what it can do.

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Magnepan—Updating a Legend

I finished my first day at THE Show, at the Flamingo hotel. (It's wonderful that CES and THE Show are now within easy walking distance.) Over the years, Magnepan has built some of the best-sounding speakers I've heard, and most often ones that perform at the level of speakers several times their price. The MG 1.6 is one of the High End's true classics and has always been one of its most spectacular bargains. One of Magnepan's demo systems was the brand-new MG 1.7. It's physically identical to the 1.6 but rather than planar-magnetic drivers for the bass and tweeter, the 1.7 use Magnepan's "Quasi-Ribbon." Both planar-magnetic and quasi-ribbon drivers are lightweight diaphragms onto which a conducting element is attached, but in the case of the planar-magnetic, the element is wire. In the quasi-ribbon, it's a very fine ribbon, or foil. The latter is lighter and covers more area, so the performance approaches that of a ribbon, where the conducting element<I>is</I> the diaphragm. The 1.7s sounded truly spectacular and at just $2000/pair, destined to be another winner for Magnepan.

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Gradient, Amarra, and more

On the fourth floor of THE Show, Tim Ryan of Simpli-Fi was demming the Gradient Helsinki 5.1 loudspeaker ($6500/pair, down from $8000 a year ago). This weird-looking loudspeaker produces anything but weird sound. Designed to avoid reflections from the sidewalls and floor, it has 85dB sensitivity, a nominal 6 ohm impedance, and a frequency range of 200Hz&#150;20kHz.

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KEF's Special Blade

"Go and hear the KEF Concept Blade Loudspeaker," encouraged John Atkinson, "it’s their current statement on the state of loudspeaker art." For reasons unclear, KEF selected a hard-to-find Hilton Hotel suite for their exhibit, far away from the high-end exhibits in the Venetian Hotel. But when I whispered the word "Blade," I was ushered into a dark room where the set of twin loudspeakers, looking like aircraft wings, were standing. The cabinet curvature eliminates cabinet resonances, I was told. The KEF engineer explained that the company had not set a price on the Blade because they regarded it like a concept car, a one-off, handbuilt test model.

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Wien, Wien...

Two of my colleagues had waxed so enthusiastic about the Vienna Acoustics The Music loudspeaker ($27,000/pair), showcased in the huge Sumiko suite on the 34th floor, that I had to take a listen for myself. Sources were the Wadia 781 CD player and Project Xtension turntable ($6000) with Sumiko Palisantos Presentation cartridge ($3500), feeding an Aesthetix Calypso linestage, Aesthetix Io phono preamp, and Aesthetix Atlas amplifier. Also heard was a pair of REL G1 subwoofers ($3995 each), all connected by a mix of Transparent Audio and OCOS cabling.

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SoundSmith's Special Sound

I always look forward to Peter Ledermann's analog demos, because the sound of his cartridges, electronics, and speakers is consistently delicious. While it certainly was this time around, some surprising booming in the bass&#151;something I do not recall hearing at any previous SoundSmith demo&#151;alerted me to the fact that the small rooms at THE Show, situated on the fourth floor of the Flamingo Hotel, were a bitch to control.

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Nagra's 300B Amplifier

Because of the <I>Stereophile</I> writers' need to share a cab (and keep costs down) I visited the Nagra suite at the Mirage hotel with JA, JI, KR, and LG. As we walked through the Mirage I felt like we weren't a group of audio writers, we were a posse. I kept humming the music Quintin Tarantino used in <I>Kill Bill</I> for the Crazy 88's whenever we walked around. All right, we weren't <I>that</I> bad ass.

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