HE 2007
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HE 2007
Larry Greenhill May 15, 2007 2 comments
...and 3.6kW into 2 ohms! All in a day's work for Krell's $40,000/pair, Krell Evolution 900 monoblock amplifier. On passive display with its top off, you can see that the amplifier has three output modules, each containing a pair of driver stages, 28 bipolar output devices, and a massive heatsink that vents heat in chimney fashion through vents in the top and bottom of the chassis. The power supply features two 3kVA toroidal transformers, 52 electrolytic capacitors, each rated at 1800µF, 900watt, and 105°F. Weight? Again I didn't want to know, but was told it was a mere 175 lbs!
HE 2007
Robert Deutsch May 15, 2007 0 comments
Performing music in a group is all about collaboration and communication. Look closely at this picture of the John Atkinson Trio, in performance on the last day of HE2007. JA is playing a solo, and both pianist Bob Reina and drummer Allen Perkins are listening and watching intently. In his comments after the number, Bob said that they had some differences of opinion about how to end the number, and resolving these differences required some give-and-take in the actual playing. Now that's jazz!
HE 2007
Robert Deutsch May 15, 2007 2 comments
The official closing time of HE 2007 was 5pm on Sunday. I was surprised to see, then, that there were some people registering even as late as three o'clock Sunday afternoon. Now, that's real devotion to the hobby!
HE 2007
Wes Phillips May 14, 2007 1 comments
Larry Greenhill has already blogged about how good the Escalante Fremonts sounded in the Sound By Singer room Escalante shared with VTL. They did a disappearing act that would have done David Blaine proud. I was so impressed, I came back for a second visit and came away even more impressed—not just with the Fremonts, but with the VTL/dCS system that enabled them to sing like they did.
HE 2007
Wes Phillips May 14, 2007 2 comments
As you can see from Larry Greenhill's photo, Chord's RED Reference CD player ($28,500) is one sexy piece of kit. The gleaming metalwork, the sturdy clamshell clamp, its swooping lines—it's just gizmoidally drool-worthy.
HE 2007
Wes Phillips May 14, 2007 0 comments
Balanced Audio Technology's Geoff Poor pats the fevered brow of the REX reference preamplifier ($18,500). With 18 tubes, no wonder it has a fever!
HE 2007
Wes Phillips May 14, 2007 2 comments
I always seek out Wilson Audio's room at the HE shows. Is it because Wilson always gets great sound? It does—but, as the big dog on the block, they probably don't have to attend. The company supports the high-end community, not just by showing up, but by sending Peter McGrath and his fabulous recordings.
HE 2007
Larry Greenhill May 14, 2007 0 comments
Todd Eichenbaum, design engineer at Krell, walked me through the design of their new amplifier, the $10,500, 300Wpc 302. The power supply employs a 3kVA toroidal transformer, built-in power conditioning, a current-mirror input stage, a push-pull driver stage, and low negative feedback (8dB) around the output stage. It was paired with the $10,000 Evolution 222 stereo preamplifier.
HE 2007
Larry Greenhill May 14, 2007 0 comments
Krell Industries' new Modulare Duo loudspeaker system was the one active exhibit in their suite, playing music from an excellent sampler of audiophile favorites. Todd Eichenbaum, shown standing next to the $35,000/pair, 300 lb system, explained that the separate woofer and satellite units were made of machined billet aluminum, as with Krell's original LAT-1 speaker system, but the Modulare’s drivers and passive crossover circuitry have been designed for higher current handling. The low-frequency cabinet contains three 8" aluminum-cone woofers, while the satellite section marries a 1" ScanSpeak ring-radiator tweeter, and a 6.5" aluminum-cone midrange driver.
HE 2007
Larry Greenhill May 14, 2007 1 comments
The Pathos InPower monoblock amplifier ($13,500/pair) is a hybrid design offering 80W (at 0.4% THD, 5Hz–60kHz, ±3dB. It features some of the most beautiful industrial design I saw at the show. Designer Gianni Borinato describes it as a balanced, double INPOL power amplifier, with a zero-feedback, hand-matched. MOSFET output stage biased to run in class-A. The point-to-point wiring uses silver wire. Two triode tubes in the input stage are wired in opposite phase to form a double triode that is claimed to minimize distortion. The design proved its merit by driving the Focal 1037 Be loudspeakers with speed, dynamics, and excellent imaging. The room was a favorite among the Stereophile writers at the Show.
HE 2007
Larry Greenhill May 14, 2007 3 comments
"That's an impressive soundstage for a two-way monitor," I thought looking at the diminutive Confidence C1 loudspeaker, but hearing a wide, deep soundstage. Dynaudio's 25 lb pound, two-way ($7000/pair plus $450/pair for two) features a 7" woofer and the Danish company's acclaimed Esotar2, 28mm, soft-dome tweeter. The drivers are mounted on a baffle that is said to be decoupled from the cabinet. Dynamic range was superb driven by Simaudio Moon W-7M monoblocks, thought JA, who thought that this system's reproduction of Stereophile's new Attention Screen CD was one of the best he heard at the Show.
HE 2007
Wes Phillips May 14, 2007 0 comments
Masataka Tsuda designs and manufactures both Concert Fidelity and Silicon Arts components. What's the diff? Concert Fidelity is his tube line; Silicon Arts Design represents his thinking on—you guessed it—solid-state.
HE 2007
Wes Phillips May 14, 2007 0 comments
Signals-SuperFi's Chris Sommovigo poses with the new Continuum Criterion turntable and Copperhead Tonearm ($51,500). Well, he is the importer, after all. However, he is also the designer and manufacturer of Stereovox cables, and he had new AC cables, speaker cables, and interconnects to tout— Dragon AC ($3500), Dragon speaker ($11,000/pair), and Dragon interconnect (tbd). Why didn't he pose with his stuff?
HE 2007
Wes Phillips May 14, 2007 0 comments
Signals-SuperFi's Chris Sommovigo poses with the new Continuum Criterion turntable and Copperhead Tonearm ($51,500). Well, he is the importer, after all. However, he is also the designer and manufacturer of Stereovox cables, and he had new AC cables, speaker cables, and interconnects to tout— Dragon AC ($3500), Dragon speaker ($11,000/pair), and Dragon interconnect (tbd). Why didn't he pose with his stuff?
HE 2007
Wes Phillips May 14, 2007 0 comments
Peak Consult's Per Kristoffersen poses with his new floorstanding two-way Princess loudspeaker ($10,500/pair). "You know," he said, "it is really quite amazing what you can get out of a 5.5" driver."
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