CES 2014

Why have both a music server at a home and a portable one in your pocket when one machine can do both? At least that is the pitch I was given in the Astell&Kern room in the Venetian. The story is that the AK240 is good enough to compete with many larger systems and function as a high performance USB DAC as well (via the Micro-B USB input). Pricing hasn't been set yet, but I was told would be under $3k when it is available in March.

Highlights for the new AK240 include 384GB total memory for music storage (internal and additional microSD card slot), which would translate to around 800 albums (CD quality FLAC) and ability to connect directly to HD download sites via WiFi for music purchase (vendors TBD). On the front is a 800x480 resolution color touch screen set into a body made of "Duralumin", described as an aircraft grade aluminum alloy. The unit indeed feels quite solid in the hand.

Astell&Kern, whose audiophile-grade portable music player won over John Atkinson, and whose AK120 model won a 2014 CES Innovations Design and Engineering Award, offered a sneak peak at their prototype Cube One, class-A, 20Wpc, 300B, push-pull integrated amplifier (no price set). Due in the second half of 2014, the Cube One delivered very liquid and illumined sound through Astell&Kern’s prototype loudspeakers. Expect a complete Astell&Kern system before too long, and check out Jon Iverson's report on A&K’s new AK240 media player.

Jon Iverson already reported on the Antelope DAC, but as I have just favorably reviewed their SCM 7 v.3 minimonitor for the forthcoming April issue of Stereophile, I was more interested in the active ATC SCM100SL Towers in the room. This speaker combines ATC's proprietary soft-dome midrange driver with a 1" tweeter and 12" woofer, tri-amped by ATC's Anniversary amplification. With a laptop running JRiver Media Center feeding data to the Antelope Zodiac-Platinum DAC with its Voltikus power supply, the 24/96 transfer of Steely Dan's "Babylon Sisters" was reproduced with tight, well-controlled low frequencies.

Like Stephen Mejias at the 2013 Rocky Mountain Audio Fest, I have been impressed by the German Zellaton speakers when I have heard them, both at shows, and at a dealer event I attended in 2012 at Fidelis Audio in New Hampshire. With foil-covered drive-units, a crossover from Duelund Coherent Audio, and driven by Trinity balanced phono and line preamps and 200Wpc CH M1 amplification from Switzerland, the three-way Reference speakers sounded forceful and detailed.

Is it any surprise Audio Consulting and Scaena, otherwise known as Switzerland meets South Florida, sounded excellent? From Audio Consulting, who were making their first show appearance since 2008, and is now sold direct from Nashville, we experienced numerous products. The first, the Audio Consulting MIPA (Mains Independent Power Amplifier) Silver Rock Toroidal amplifier, is available in stereo 30W ($45,000), mono 120W, and 30W/120W switchable ($52,000) configurations. A battery-driven, solid-state class-A switching amplifier, it has customizable inputs and outputs and is housed in a wood chassis.

Audio Research's new SP20 tube stereo preamplifier ($9000) combines a full-function linestage and phono stage, and includes a hi-resolution tube-driven headphone output, touchscreen control, remote control, and both balanced and single-ended inputs and outputs. The front panel echoes the Minnesotan company's fabled SP3 preamps from the 1970s. Listening to the company's first preamp in 20 years to include both a linestage and phonostage via Sonus faber Olympica III loudspeakers, I heard both the classic Audio Research midrange and a fast response that served bebop extremely well. Bob Reina is working on an SP20 review for Stereophile.

Gideon Schwartz of AudioArts NYC assembled an extremely fast system that delivered maximum color without any of the harsh, irritating edge that I encountered on many systems, both tube and solid-state, at CES. On Salvatore Accardo's well-worn Diabolicus in Musica LP of Paganini's solo violin music, as well as on a CD by the Musicians of the Nile, I was deeply impressed by the upward extension of the tone and the system's willingness to bathe music with the light it deserves. If the system wanted for the last iota of bass impact and clear delineation of low-lying lines, it nonetheless handled bass with a finesse that few hotel room set-ups offered, especially in the case of large loudspeakers sandwiched into small spaces.