Dan D’Agostino is no newbie to high-end audio, but his namesake company is. In the new company’s first showing at a CES, Dan brought in his new Momentum monoblock amplifiers ($42,000/pair). The amps, visually inspired by Swiss watch design, are among the most distinctive and beautiful pieces of equipment I’ve seen. The sides of the amplifier are made of copper, which not only gives the amps a lustrous, glowing color, but also serve as very efficient heatsinks for the 28 output transistors.

The amplifier is completely made in-house, including such things that are usually handed off to subcontractors, like stuffing the printed-circuit boards. There are no surface-mount parts used, Dan feeling that traditional through-hole parts offer better long-term performance consistency.

A 1.2kVA power transformer is packed into the compact chassis and in the tradition of Krell, the company that he cofounded 30 years ago, the new amplifier puts out 300W into 8 ohms, 600W into 4 ohms, and 1200W into 2 ohms, all with class-A/B biasing. Yet, there was nothing about this system that sounded like class-A/B amplifiers. Driving Wilson Sashas, the sound was warm, fast, open and generous—tonally and spatially. Voices all sounded balanced, life-like and three-dimensional. Dan told me a matching preamplifier is on the way.

A closer view of the Dan D’Agostino Momentum amplifier, with its watchface-styled meter. Photographs just don't do this gorgeous amplifier justice—I just wanted to stroke that meter, caress those copper flanks!

Michael Fremer and I got up early Friday morning and headed to the Mirage hotel where Devialet, a new French audio company, and its new North American distributor, Audio Plus Services, hosted a breakfast gathering to unveil their new D-Premier ($15,995). Encased in a mirror-finished solid aluminum chassis, the D-Premier is an all-in-one DAC, streamer, preamp, power amp, and phono stage. Not only does the D-Premier combine all these features in one product, but it also has a new and novel amplifier section; a patented Analog Digital Hybrid.

The input signal goes directly to a class-A amplifier. Though the output of this connected to the speaker terminals, it can’t deliver enough current to do so without help. The necessary high current is sourced from a class-D amp. The analogy of this amplifier is like power steering on a car where the driver is assisted by a powerful engine to turn the wheels; the driver turns the wheel but the power steering does the heavy lifting. In the same way, the class-A section of the amplifier controls the class-D section. The idea is that the amp retains the sonics of class-A yet maintains 85% efficiency in a 240Wpc amp.

The Devialet design team— Pierre-Emmanuel Calmel and Matthias Moronvalle (the latter shown in JA’s photo holding a demonstration version of the amp housed in acrylic)—was insistent during the presentation the D-Premier is not a class-D amp.

The sound with Focal speakers was clear, balanced, open, and grain-free, with no hint of the hash sometimes associated with class-D amplification. (The eggs at the breakfast were also excellent.)

The Devialet D-Premier directly converts the wall current to DC, then uses a high-efficiency switch-mode power supply running at a very high frequency to power the audio circuitry. I asked Matthias Moronvalle if this meant that the power transformer could be much smaller than usual? His response was to show me the two small wafers sitting on his laptop. "That's the transformer," he told me, "with a continuous rating of 600VA." Ulp!

I have been following with interest the goings-on at Nevada-based Wisdom Audio, since the company was revitalized with members of the team that had led Madrigal to success in the 1990s. But their concentration on in-wall speakers, using planar technology developed by David Graebener, means that they fall within the bailiwick of our sister publication Home Theater. Going in their room at CES, however, I was confronted by the LS4 floor-to-ceiling on-wall ($80,000/pair), which sounded magnificent driven by Classé's superb new CT-M600 monoblocks and reinforced below 80Hz by a pair of Wisdom enormous STS 2x15" subwoofers ($10,000 each; STS stands for "Steamer Trunk-sized Subwoofer"). The system controller, which includes an active crossover and room correction, costs $6500.

The LS4 uses four identical push-pull modules, each comprising a central HF section operating above 750Hz flanked by midrange sections covering the 80&#150Hz range. The backwave is absorbed within the enclosure, but the enormous radiating area still gives a sensitvity of 100dB/2.83V/m. (Impedance is 4 ohms.) Though the LS4 is fastened to the wall behind it, the weight is supported by a single spiked foot.

The LS4 is where architectural audio becomes aspirational audio.

Wisdom president Mark Glazier holds one of the two-way, push-pull, planar-magnetic modules, four of which are used in each LS4.

Richard Vandersteen doesn't rush to release new loudspeakers, so given that the top-of-the-line Vandersteen 7 was a hot product at the 2010 CES, I wasn't expecting anything new at the 2011 Show. Talking to Richard in the company's Venetian suite, where they were featuring the Model 7, he casually mentioned that the new Tréo ($5990/pair) was at the Show, just not in his room. So I hustled me along to the Musical Surroundings room, where the Tréos were being demmed with a Clearaudio turntable and Aesthetix electronics.

Basically, the Tréo is similar to the $10k/pair Quatro Wood that Wes Phillips reviewed in December 2007, but replaces that speaker's active, equalized bass unit, with a conventional passive 6.5" woofer and an 8" flat-cone "acoustic coupler." Good sound at an equally good price.

Veteran electronics and speaker designer Walter Lindemann decided to expand Lindemann’s line to include cabling after he discovered he was never quite satisfied with cables and didn’t want to resort to cables that cost $50,000. Instead, he decided to enlist a German company to help him roll his own Kind of Blue Cable Series. The cables are said to be a “perfect complement” to the company’s 800 series of electronics.

Soon to be distributed by Jonathan Josephs of One World Audio (smilingly showing off his babies), and so new that the US price has not been set, Lindemann’s Kind of Blue cable line includes power cables, speaker cable, and interconnects. All are cryo-treated.

Power cables, which come either shielded or unshielded, contain up to 14 separate “twisted pair” conductors composed of high-purity copper. Insulation is “Teflon-like,” there are neither ferromagnetic materials nor magnetic screws, shielding (when used) is a conductive Gore-Tex coasted with carbon. Interconnects come single-ended or balanced, the latter with a special XLR connector that is completely free of steel and includes gold-plated contacts.

Have you ever had the nagging feeling that there was something that you were going to do- but you don’t remember what it was? I got that feeling when I was finishing my blog entries. There was one more such entry that I remember thinking that I must do, but what was it? There was nothing to jog my memory in the little notebook where I scribble information, and I couldn’t find any product literature that would remind me of it.

It was when I was going through the CES photo files on my computer that I ran across the photo that served as a reminder. Of course—Anthony Gallo! I visited his room in the Venetian briefly on the Press Day, when the exhibitors were still in the process of setting up. What drew me into the room was that, unlike other exhibitors that still had all their equipment in boxes, there was some music playing in Gallo’s room—and it sounded pretty nice. Anthony was hard at work, preparing loudspeaker cables for his speakers. I took his picture and promised to return later.

And I did, too, on the last day of the Show. The speakers that made their debut at the 2011 CES represent a significant change for Anthony Gallo’s approach to speaker design: instead of the spherical enclosures, the new Classico line uses traditional wooden boxes enclosures. The speakers (there are five in the line, plus a subwoofer) combine a cone midrange/bass driver with Gallo’s own Cylindrical Diaphragm Transducer (CDT). (That is, except the lowest-priced Series I, which has a dome tweeter.) The speakers also feature something called BLAST, which “reveals the true potential of the box.” (Yes, I found the product literature, which was hiding in one of the compartments in my luggage. It mentions BLAST, but doesn’t have any information on it.) The speaker that I heard initially, and that I had a chance to listen to again, was the Classico Series II ($1195/pair), the smallest speaker to use the CDT tweeter. And it still sounded pretty nice.

A sister company of Argento Audio of Denmark, Organic Audio now launched a complete line of copper cables. These include Organic Audio interconnects ($995/1m pair RCA, $1075/1m pair XLR), speaker cable ($1950/2m pair), and power cords ($995/2m). By contrast, interconnects in the all-silver Argento range from $2000–$9500/1m pair. All products are distributed by Ricardo Reyes (left) of Musical Artisans in Skokie, IL.

Ulrik Madsen (right), who designs the cables and owns the company, was on hand to discuss his products. All Organic Audio cables are derived from Argento Audio’s entry-level Argento Serenity. “I wanted to take advantage of the connectors I developed for Argento,” Madsen explain. “We make all our Organic Audio connectors ourselves from the same metal as the conductors in the cables, which is OFC 99.997% copper. (The more expensive Argento cabling uses silver). There are no solder points; all attachments are made by applying set-screws to accomplish compression.