John Atkinson

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John Atkinson Posted: 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 Posted: Jul 10, 2011 1 comments
The Surreal Sound Speaker ($10,000/pair) is the small, three-way floorstander finished in cherry, not the massive bass bin behind it, which belongs to the GOTO Horns speaker (see next story). Surreal Sound's Ralph Helmer is passionate about midrange, feeling it is in the midrange where the music truly lives. To that end, his speaker features a beryllium-disc midrange unit, mounted in an open baffle. A Heil Air Motion Transfomer supertweeter and three spider-less, aluminum-alloy, 10" cone drivers for the bass, all also mounted in open baffles, complete the drive-unit line-up. Mr; Helmer believes that one of the advantages of his dipole speakers is their high Wife-Acceptance Favor, in that they are smaller than expected for same amount of bass.
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John Atkinson Posted: Apr 23, 2004 Published: Jan 01, 1999 0 comments
One reason I have never felt the need to invest in a high-end home-theater system is that it is all too easy for me to go 'round to Tom Norton's house. As well as contributing the amplifier measurements and the all-too-rare component review for Stereophile, Tom is technical editor of our companion book, Stereophile Guide to Home Theater (footnote 1). As you might expect, he has access to video equipment that the rest of us can only dream about.
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John Atkinson Posted: Apr 16, 2011 0 comments
"I made this for myself," explained the genial Ron Sutherland, as he showed me the interior of his new monophonic phono preamplifier ($9800/pair). The power supply on the right, which uses both choke and RC smoothing, feeds DC to the active circuitry on the left via a ribbon cable running in a channel machined in the front panel. Plug-in daughterboards are used to change loading and gain and three chassis grounding options allow for the lowest noisefloor: floating, grounded directly, and grounded via a 50 ohm resistor. Ron has used 1/8"-thick circuit boards to lower dielectric effects. There are two outputs to allow a mono cartridge to to be fed to both left and right inputs of the phono preamplifier.
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John Atkinson Posted: Jan 11, 2009 1 comments
Perhaps it was the ridiculously expensive 20Wpc Lars tube amplifiers that Wes Phillips blogged about yesterday, but the modest-looking Prio 620 speakers (price starting at $5750/pair) from Finnish manufacturer Amphion, sounded both sweet and powerful on a track from bassist Brian Bromberg. The titanium-dome tweeter is loaded with Amphion's proprietary waveguide, which matches its dispersion above the low 1.2kHz crossover frequency to that of the twin 6.5" paper-cone woofers.
John Atkinson Posted: Jun 09, 2012 5 comments
"Let me turn off the Tranquility Bases and you'll hear what I am talking about," said Synergistic Research's Ted Denney.

I sighed inside. Ted had been subjecting me to the improvement on room acoustics wrought by his ART Acoustic bowls for the past few years and despite my skepticism, I kept hearing that improvement. Now he was talking about his series of Tranquility Bases. Ranging in price from $995 to $2995, these powered platforms have a ground plane and generate beneficial electromagnetic fields that are said to condition the signals passing through the components sitting on them and drain away the bad fields to ground. Yeah, right!

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John Atkinson Posted: Oct 22, 2010 27 comments
When I reported in our report from the 2009 RMAF that I perceived a degradation when Ted Denney of cable manufacturer Synergistic Research removed his tiny ART devices from the room, it triggered a debate that raged not just in the comments following that report but also in our website forum right up to today. The fact is that these small metal bowls are too small to have a significant effect on the acoustics of a room at frequencies below 10kHz or so, yet they seem to improve the accuracy and stability of stereo imaging and even tighten up the sounds of bass instruments. It is a mystery, therefore, how these devices can work. I have conjectured that perhaps they have an effect on the listener’s state of mind rather than the acoustics, but if so, then I don’t comprehend how that effect can be both repeatable and demonstrable. Whatever they do—if they do anything, that is—therefore, I wasn’t sure what to expect when I went into my final room at the 2010 RMAF, the Synergistic room.
John Atkinson Posted: Jul 09, 2011 0 comments
There was no information available on this cute tube integrated from Italy, the Synthesis Flame, except that it has remote control and costs between $1500 and $3000. But it sure is pretty! Check out www.synthesis.co.it.
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John Atkinson Posted: Jan 13, 2011 0 comments
The German T+A brand is now being distributed in the US by Dynaudio North America and having only been aware of their electronic products, I was surprised when I went into the T+A room at CES to see a large pair of speakers, the Solitaire CWT2000s ($45,000/pair). However, "I have been designing speakers since the company started," explained T+A's Siegfreid "Siggi" Amft, seen here with his creation.

The speaker features an electrostatic tweeter, 45mm wide but mechanically split into three 15mm-wide sections. as the frequency increases, the crossover increasingly cuts off drive to the outer sections, maintaining lateral dispersion. Adjacent to the tweeter is an array of six 6" cone midrange units, with the higher frequencies mainly being handled by the central units, again to optimize dispersion. Two pairs of 10" woofers complete the driver complem3nt, one pair being mounted each side of the enclosure and driven in-phase so that their reactive forces cancel. The sealed-box alignment is said to give a –dB point of 37Hz. Two more, smaller, less expensive Solitaire models will be launched later in the year.

The T+A speakers were bring driven by T+A M10 hybrid monoblocks ($33,000/pair), which use a tube input stage capable of delivering the full output voltage required by the speakers, with then a solid-state current amplifier providing the necessary cone-controlling grunt.

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John Atkinson Posted: Jan 20, 2012 0 comments
It costs $42,000 but TAD's new C600 solid-state line preamplifier features dual-mono construction, an all-discrete signal path, a separate power supply, and fastidious attention paid to detail in both its design and construction. The amber LED display for example, is DC-powered rather than from the usual multiplexed supply, to eliminate EMI interference. And the sound, in conjunction with the D600 SACD player, M600 monoblocks, Reference One floor-standing speakers, and HRS rack to give a system price of $214,500? I'll leave it to Stephen Mejias to describe in his show wrap. Personally, it was a highlight of the 2012 CES.

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