Erick Lichte

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Erick Lichte Posted: Jan 15, 2011 0 comments

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.)

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Erick Lichte Posted: Jan 14, 2011 4 comments
Peachtree was showing off its new iNova integrated DAC/preamp/amplifier, the replacement for their best-selling Nova. The iNova upgrades some parts from its predecessor including better capacitors, a 24-bit/96kHz USB input and an upgraded iPod dock. The amp is rated at 80Wpc and will sell for $1799.

The iNova was hooked up to the brand new Aerial 7T speakers, which employ some major cosmetic, and structural changes from previous Aerial speakers. The 7T ($9850/pair) is a three-way loudspeaker, nominally rated at 4 ohms and 89dB sensitivity. The finish on the cabinet, made from MDF bent to shape, was excellent. (Though the enclosures are made in China, the speakers are manufactured in Aerial’s Massachussetts facility.) Playing files from a server to the iNova, Aerial 7T sounded huge and clear with fantastic bass extension and articulation.

I was impressed by the fact that the Peachtree was able to drive these speakers with such scale and authority.

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Erick Lichte Posted: Jan 13, 2011 0 comments
Conrad-Johnson introduced their new ET5 line stage preamplifier. According Bill Conrad and Lew Johnson, the ET5 is a scaled-down version of the GAT preamp (the silk-screening you see here labeling the ET5 as a GAT is an error). The ET5 shares all of the same parts as the GAT but is a stereo design instead of the GAT’s dual-mono layout. The ET5 uses Vishay resistors, CJD Teflon capacitors, gold plated OFC I/O connectors and vibration-isolated printed circuit boards for the gain circuit. The ET5 ships this month and will cost $9500.
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Erick Lichte Posted: Jan 13, 2011 0 comments
Audio Power Labs was a new name to me, and not without reason. The company was recently started up by a number of audio enthusiasts, including a number of ham radio operators and this was their first showing at a CES. The 833TNT monoblock amplifiers (price not set) use an interesting compliment of tubes, including two 833C tubes that are often used in small AM transmitters and a switching power supply.
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Erick Lichte Posted: Jan 13, 2011 0 comments
Pass Labs showed off two nice beer fridges, er, amplifiers at this year’s CES. Lacking any model numbers or nomenclature, the top monoblock amp (the top two units) is a single-ended 200W amp ($45,000/pair) and the bottom monoblock is a single-ended 300W amp ($75,000/pair). Nelson Pass is shooting to use no feedback on these circuits and maintain the Super Symmetry design made popular in far less extreme applications. The new part for these amps is a brand new silicon-carbide FET. These FETs were initially designed for the military—way to turn swords into plow shares and space heaters, Nelson!—and Pass Labs intends on exploring their use in future products.
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Erick Lichte Posted: Jan 13, 2011 0 comments
I met designer Hans-Ole Vitus in his room at the Venetian, where he was showing his new stereo amplifier, the Vitus SS 101 (pictured in the middle, $40,000). The SS101 puts out 50Wpc in class-A and 100Wpc in class-A/B. It also has a volume control, making it a single-source integrated amplifier that can be operated by remote control. The system really sounded great and Hans-Ole was a delightful chap.
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Erick Lichte Posted: Jan 13, 2011 0 comments
“Biggest. Tube. Ever.” I said, in my best Comicbook Guy voice. The Kronzilla DX Mk.II ($32,000/pair) from KR audio of the Czech Republic uses two T1610 output tubes in parallel to achieve 100Wpc of triode power. The amp also uses zero negative feedback.
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Erick Lichte Posted: Jan 13, 2011 0 comments
The Stello Ai500 integrated amplifier was shown in the April Music room. A 150Wpc integrated with a built-in high resolution DAC, the Ai500 sells for $3500 and ably drove power-hungry Magnepan speakers.
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Erick Lichte Posted: Jan 13, 2011 0 comments
Sonneteer, a UK audio company, was showing off its new Morpheus Music Center ($4000), an integrated amplifier, DAC, and control center for streaming audio. The amplifier section is rated at 50Wpc and will stream music via WiFi or Ethernet, play Internet radio, and USB input. The Morpheus also has three analog inputs and one analog output so it can send signal to an external power amplifier or subwoofer. Standing by his creation is Sonneteer’s Haider Bahrani.
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Erick Lichte Posted: Jan 13, 2011 3 comments
Ayre showed off their new VX-R stereo amplifier, a stereo version of their lauded MX-R monoblocks. Rated at 200Wpc into 8 ohms the VX-R is priced at $14,950. The amp is a zero-feedback design, featuring fully balanced discrete circuitry. As usual from Ayre, the chassis is beautifully made of milled aluminum. The sound of the VX-R, driving the TAD Compact Reference monitors was wonderful.

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