Larry Greenhill

Sort By: Post Date | Title | Publish Date
Filed under
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.
Filed under
Larry Greenhill Posted: Jan 16, 2012 1 comments
In response to Mark Levinson Audio Systems' 40th Anniversary, the company has announced a new line of products for the two-channel audiophile, the 40th Anniversary Collection at CES 2012, which includes the $25,000 No.52 Reference dual-mono preamplifier, the $10,000 No.585 integrated amplifier, the $6000 No.519 SACD player and the $6000 No.560 digital processor. I was most intrigued by the $10,000 No.585 integrated amplifier shown in the photo, which is rated at 225Wpc into 8 ohms, and provides a dedicated subwoofer output.
Filed under
Larry Greenhill Posted: Jan 16, 2012 0 comments
Harman Specialty Audio's Kevin Voecks demonstrated his latest portable room-response testing system, an iPad 2 running Studio Six Digital's "Audio Tools" iTunes app. (A favorite of JA’s.) The iPad 2 plus a $50 external mike and an accessory box from Studio Six becomes a portable audio test system with up to 1/48-octave resolution. Kevin used this tool to set up Revel's new M106 and F208 loudspeakers on the 35th Floor of the Venetian Hotel. He demonstrated frequency response graphs and a virtual SPL meter—seen in detail as a graphic representation of a huge analog SPL meter on the iPad screen.
Filed under
Larry Greenhill Posted: Jan 16, 2012 0 comments
It was good to visit McIntosh Laboratory's 35th floor suite at the Venetian Hotel and spend a few minutes with Ron Cornelius, the product manager, discussing our shared experiences with the legendary McIntosh MR-78 FM tuner. Ron showed me the latest iteration of the company's MC-275 tube amplifier. Now released as version 6, 50th-Anniversary 275, priced at $6500, it reminded me that the amplifier was first shipped in 1961.
Filed under
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.
Filed under
Larry Greenhill Posted: Jan 16, 2012 0 comments
Skullcandy, a manufacturer of trendy headphones, put up a huge multi-level exhibit in CES's Las Vegas Convention Center South Hall. In general, I was surprised at the large amount of exhibit area purchased at the Las Vegas Convention Center South Hall by headphone manufacturers this year at the CES. It dwarfed the spaced occupied by audio manufacturers of home quality equipment, taking many times the space occupied by home audio amplifiers and loudspeakers.
Filed under
Larry Greenhill Posted: Jan 16, 2012 0 comments
Ron Sutherland had a rack of his components at CES to drive Vandersteen Quatro floorstanding loudspeakers. The rack consisted of the two monophonic Phono Block phono preamplifiers, recently reviewed by Brian Damkroger in Stereophile; the $15,000 Destination Line Stage (one non-audio signal carrying control unit with Nixie tubes, and one audio chassis for each channel); and the $10,000/pair, 200W monoblock power amplifiers. Except for the amplifier and control chassis, most of these units are configured into two side-by-side subunits—one for power supply and one for audio signal—attached only by front and rear panels.
Filed under
Larry Greenhill Posted: Jan 16, 2012 1 comments
The $25,000, 500W Mark Levinson No.53 digital-switching reference monoblock amplifier made its regular non-playing appearance at CES 2012 but this time with an illuminated cutaway display, allowing its lead design engineer, Mark Seiber, to walk me through its circuitry. The transparent panel, which the display used in place of heatsinks allowed me to easily see the No.53's four major subsections (analog input stage, modulation, amplifier output stage with its eight air-core inductors, and power supply section, which is at the bottom of the chassis.
Filed under
Larry Greenhill Posted: Jan 13, 2012 0 comments
Audio Research's Chris Ossanna proudly shows off the company's new $25,000/pair, two-chassis Reference 250 monoblocks, which employ the new KT-120 output tube. This amplifier has 50% more power-supply capacitance than their previous flagship, the Reference Anniversary 110, and uses the same type of Teflon coupling capacitors they sourced for their Reference Anniversary preamplifier. The front panel metering allows the consumer to check the bias and to adjust the speed of their response to either fast or slow.
Filed under
Larry Greenhill Posted: Jan 13, 2012 1 comments
Audio Technica's PR rep Frank Doris models the company's limited-edition, $1299.95, ATH3000 headphones, that feature Echizen wood frames, 53mm drivers, Spanish lamb wool cushions, and 7x9s copper wire.

Pages

X
Enter your Stereophile.com username.
Enter the password that accompanies your username.
Loading