John Atkinson

John Atkinson  |  Mar 10, 2010  |  8 comments
Speaker designer Bill Roberts talks so fast, I could only write down every third word as he explained the design principles behind the Advanced Transduction Directorate loudspeaker. A four-piece, three-way system with an outboard crossover and line-loaded woofers, the 600lb Directorate has a very high claimed sensitivity of 96dB/W/m and bass extension of –3dB at 14Hz. Price is $30,000/system in light-oak veneer, or $25,000/system unfinished, as shown in the photo. With left and right speakers each driven by a 125Wpc Power Modules Belles 150A Reference stereo power amplifier ($2300), and a front end of CD files played with Sony Sound Forge running on a PC sent as digital audio to a Belles DAC and the new tubed Belles 22A preamplifier ($2500), the sound, even in an acoustically challenged room, had superb balance, dynamics, and transparency.
John Atkinson  |  Mar 10, 2010  |  0 comments
I was familiar with the $4000/pair Penaudio Charisma speakers in the May Audio room, but the well-finished and equally well-sounding electronics driving them were from an English company I had never heard of, Chapter Electronics. Making its US debut at Axpona, Chapter, I was told, features designs from Duncan Shrimpton, an engineer who used to work for Chord. The Sonnet S CD player ($9000) is a top-loading design with a volume control to allow direct connection to an amplifier and both S/PDIF and USB inputs for streaming audio from other sources. The matching Précis 250S integrated amplifier ($11,995) offers 250Wpc into 8 ohms from a class-D output stage. The illuminated knobs on both products can be dimmed or even have their colors changed.
John Atkinson  |  Mar 10, 2010  |  3 comments
Jason already blogged about the sound from the big rig in the Cary Audio room, which was being run by Florida retailer Let There Be Sound. I had enjoyed the sound of Ry Cooder's classic Jazz from LP in that room Saturday night after the Show closed, as well as a CD-R of songs from the Who's Tommy, burned from an acetate of the master by Mikey Fremer using his awesome Continuum record player. But Sunday morning, LTBS's Oswaldo Martinez was playing Rebecca Pidgeon's classic "Spanish Harlem" from CD on a system featuring the 5Wpc Cary Exciter integrated amplifier driving these beautifully finished single-driver bookshelf speakers, the Sur. Pidgeon's voice sounded smooth and natural, the double-bass accompaniment evenly balanced and more extended in the lows than I was anticipating, though when a Showgoer asked for The Doors' "Waiting for the Sun" to be played, the electric guitar sounded a little peaky in the mid-treble. To be priced at $2000/pair, the Sur features a port-loaded, full-range Fostex drive-unit and will only be available from LTBS.
John Atkinson  |  Mar 10, 2010  |  0 comments
Since the first Show in which I was involved in the organization (the 1981 Hi-Fi News Show at London's Heathrow Airport), I have arranged a program of seminars where Showgoers can be entertained and also learn more about the theoretical aspects of audio. Axpona was no exception, and for the very first seminar after the Show opened on Friday afternoon, my guests were Mark Waldrep of AIX and iTrax.com (left) and legendary mastering engineer Bob Katz, of Chesky fame and many others (right). We spent 75 minutes talking about the advent of the computer as a high-end audio source, the sonic advantages of high-resolution audio, and the sonic limitations of lossy compression. My thanks to Mark and Bob for taking part, and also to Michael Fremer, Jason Serinus, Jim Smith, John MacDonald, Dick Diamond, and Bill Dudleston for giving up some of their time at Axpona to talk to Showgoers at these seminars.
John Atkinson  |  Mar 10, 2010  |  0 comments
My loudspeaker seminar on Saturday featured Dick Diamond of YG Acoustics (to the left in Jason's photo), John MacDonald of Audience (far right) and Bill Dudleston of Legacy (immediate right with hand raised). The first half of the session featured each panelist discussing what his goals were as a loudspeaker manufacturer, what technical parameters he felt most correlates with good sound, how he balanced all the various aspects of performance to get a good balance at a specific price, and where he felt there was the greatest room for continued improvement in speaker performance. The second half of the seminar consisted of a Q&A session and there was a lively discussion, including mention of the fact that all three companies featured on the panel continue to manufacture their speakers in the US.
John Atkinson  |  Mar 10, 2010  |  0 comments
Stereophile senior editor Michael Fremer hosted two turntable set-up seminars at Axpona, explaining how to optimally install and set-up a phono cartridge and tonearm for lowest distortion and best sound. He did a great job of demystifying an arcane subject; for those who couldn't attend Axpona, you can see an expanded version of the seminar on his DVD 21st Century Vinyl, available from this website.
John Atkinson  |  Mar 10, 2010  |  1 comments
In addition to his enormously impressive hi-rez surround-sound dem mentioned earlier in this report, Mark Waldrep of AIX Records and iTrax.com gave a well-attended seminar on all three Show days explaining how a computer can be used as a valid source in a high-end audio system and demystifying HD music.
John Atkinson  |  Mar 09, 2010  |  0 comments
One of the things I love about Shows like Axpona is the chance to hang out with Stereophile's readers, like Ed Lippman and his son Ross. "Can you publish our photo in the magazine?” asked Ed. So here they are. Ed’s on the right and Ross (who wrote an Axpona report for Audio Asylum) is on the left.
John Atkinson  |  Feb 12, 2010  |  0 comments
Back in the last century, I mused in this space about the essential difference between recorded sound and the real thing. I had been walking to dinner with friends when I heard the unmistakable sound of live music coming from a window. But here was the kicker: rather than the instruments being of the audiophile-approved acoustic variety, they were two amplified electric guitars. Their sounds were being reproduced by loudspeakers, yet it was unambiguously obvious that it was not a recording being played through those loudspeakers, but real instruments.
John Atkinson  |  Feb 07, 2010  |  First Published: Feb 07, 1990  |  0 comments
Although it was Thomas Edison who set the tone for technological development in the 20th century, with his intellectual sweatshop in New Jersey, it is the lone inventor who has always had a special place in the heart of the American public. Since the days of Samuel Colt, Eli Whitney, and Nikola Tesla, fortune and fame have awaited the genius tinkerer who emerges from his back yard with a better mousetrap, cotton gin, etc., etc.

Pages

X