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Larry Greenhill Posted: Jan 16, 2012 0 comments
Ron Sutherland of Sutherland Engineering taught me all I need to know about Nixie tubes at CES. Used as the main visual display device used in his Reference N-1 preamplifier and in his Destination Line-Stage preamplifier's control unit shown in the photo, the Nixie tube was invented in 1955 as the first electronic display tool for reading out the numbers 0–9. The Nixie's designers fashioned a wire mesh into 9 layers, each layer in the shape of a number, resulting in a tidy small stack. This tiny wire stack was inserted into a small glass envelope, filled with neon gas, and then sealed. When any of the separate metal layers was charged with 175 volts, the neon gas around the wire ionized, and lit up. When plugged into a circuit board, the tube would read out the numbers, with each number appearing at a different depth. Paul was fascinated with the retro look of this type of readout, so he has installed it in his $15,000, three-chassis Destination line stage, and into his new $10,000 reference N-1 preamplifier.
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Larry Greenhill Posted: Jan 16, 2012 0 comments
I heard very detailed and rich sound in the exhibit run by Lamm Industries and by Verity Audio. The system setup included $95,995 Verity Audio Lohengrin II speakers, $37,190/pair Lamm ML2.2 single-ended, dual-chassis 18W amplifiers, a $28,000 Kronos turnable with a $5,200 Phantom II XL12 tonearm, $5500 Dynavector X1Vs cartridge, and $97,000 worth of Kubala-Sosna interconnects, speaker cables and power cords. Julien Pelchat, the Vice-President of Verity Audio, walked me through the design of the Lohengrin II speakers.
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Larry Greenhill Posted: Jan 15, 2015 0 comments
T+A's lively and energetic Jochen Fabricius was eager to fill me in on the new, 3-way, 183 lb, $55,000/pair T+A CWT 1000-8 SE floorstander. This speaker uses a 25" by 2" electrostatic line tweeter that covers the frequency range from 2kHz to 40kHz.
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Larry Greenhill Posted: Jan 15, 2015 2 comments
Abbey Masciarotte, Tannoy's representative at CES 2015, showed me the company's floorstanding Canterbury loudspeaker. The Canterbury has a striking retro look and uses a dual-concentric 15" drive unit that mounts a high-frequency compression driver inside the throat of a 15" woofer.
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Larry Greenhill Posted: Jan 15, 2013 0 comments
According to T+A (Theory plus Application) ElektroAkustik's Lothar Wiemann, the manufacturer is one of Germany's largest electronics companies. (It is distributed in the US and Canada by Dynaudio North America.) This company makes the 1000 W M10 monoblock hybrid amplifiers ($33,0000/pair), where the output stage uses tubes to handle the voltage and transistors handle the current.
Larry Greenhill Posted: Feb 26, 2015 11 comments
Several seconds after I began listening to it, I knew that Theta Digital's Prometheus monoblock amplifier ($12,000/pair) was different from other amplifiers. The violins and brass were more dynamic, and had more pace. The orchestra sounded more three-dimensional, depicted in relief by a degree of hall ambience I hadn't heard when I played the same recording through my reference solid-state stereo amplifier, a Mark Levinson No.334.
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Jason Victor Serinus Larry Greenhill Posted: Jan 14, 2013 0 comments
Photograph: Larry Greenhill

Theta Digital, the pioneer of digital separates, announces the mighty Prometheus monoblocks ($12,000/pair). Heard in pre-production mode, with bass so strong and tight that it sent me into the hallway to discuss the product, the 200Wpc into 8 ohms monoblock is due out "within 90 days" (to quote a mantra oft-repeated at CES 2013).

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Larry Greenhill Posted: Jan 09, 2008 0 comments
Thiel's press conference at the Sands Convention Center on Day One of the 2008 CES opened with a detailed critique of the complexities and challenge of installing a home theater system. Ekin Binal, Vice President, Product Development, of BICOM, an IT company partnering with THIEL to address these issues, spoke in detail about the complex, labor intensive, time-intensive, cost-intensive installation of multiple speakers and channels. Furthermore, updating such a home theater system is never simple nor convenient, nor is moving a system from an old house to a new house either simple or inexpensive. Because installation is custom work, there is no universal package a single manufacturer can create that can fit most domestic locations.
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Larry Greenhill Posted: Jan 09, 2008 0 comments
Erin Binal of Bicome finished his lecture on Thielnet by stripping off the front grillw on the small, two-way, IP-addressable, powered SCS4D loudspeaker. There are twin ports above and below the coaxial driver. With the grille on or off, the SCS4D is rated with a frequency response of 48Hz–20kHz, ±3dB. Pricing was not specified. And yes, those are WiFi antennae.
Larry Greenhill Posted: Feb 03, 2008 Published: Jan 03, 2008 0 comments
When I arranged to review the Bryston 28B-SST monoblock power amplifier, I wanted to be certain that the 1kW amplifier wouldn't be starved for current. Bryston advised me that Plitron, who manufacture the 28B-SST's toroidal transformer, also make Power Isolation Units (PIUs), under the brand name Torus Power. Torus explained that its PIUs combine surge suppression with massive toroidal transformers to provide AC power conditioning and protection from voltage surges.

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