CES 2014

The German ADAM company has been developing the idea of the Air Motion Transformer HF unit, originally developed by Dr. Oskar Heil. The latest version of their tweeter, the X-ART tweeter, is featured in the Mk.II version of the Tensor Beta loudspeaker ($25,000/pair), which was being demmed with Cary electronics. The X-ART tweeter is married to a folded-ribbon upper-midrange unit, a new lower midrange unit and two woofers, all mounted on a solid aluminum baffle. The enclosure is made from 1” and 2” MDF panels, extensively crossbraced. Interestingly, waffle-shaped inner panels are loosely filled with steel shot, which absorbs vibrational energy. The speaker is also supported on fluid-filled feet to further absorb vibration.

Also new in the AMR (Abbingdon Music Research) room is the DP-777 DAC/Preamp SE (special edition) which features a "Quad Core Digital Engine", NOS GE 5670 Tubes and "Ultra Premium" coupling capacitors. The DAC handles PCM inputs up to 24/192 and pricing is still to be determined, but it will be somewhere north of $5k.

New for Antelope Audio this year is the Zodiac Platinum DAC at $5,500, which in addition to the normal PCM stuff, handles DSD 64, 128 and has the ability to upsample these to DSD256. The spec sheet also lists "64 bit precision 8x linear phase PCM upsampling" with the onboard FPGA, quad DAC architecture, and for extra precision there is an input for Antelope's 10M Rubidium atomic clock.

There are two headphone jacks on the front, volume control, and input switching for a wide variety of digital inputs. There are also 2 "de-jittered" SPDIF outputs for up to 24/192 PCM. The Zodiac Platinum is available now.

Being able to stream from your mobile phone, tablet and laptop is a popular new option these days, so Arcam has created a another way to add this capability to an existing audio system.

The miniBlink is based on the technology from Arcam’s previous Bluetooth DAC, the $300 rBlink, which has been re-engineered to lower the price by 50%. The $149 miniBlink has a USB input for power only, and mini audio output for wiring into your system. When you are in range, you pair your device via Bluetooth and can then start streaming audio.

Inside is a Burr-Brown PCM5102 24bit DAC chip and aptX streaming technology and the company is claiming 30dB more headroom and improved distortion specs compared to normal Bluetooth. The miniBlink should show up around March.

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.

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.