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One of the most fascinating tests I ever ran was one of those "let's go see how many teeth the horse really has," as opposed to discussing it, kind of things. By the way, Peter Walker of Quad did exactly the same thing at the same time—two minds, at least, thinking alike. We decided to find out in real life what kind of slew rates were really occurring. Then, operating off that basis, you can come up with your 10:1 figure that you need to achieve. So I built a differentiating circuit—this was pre-digital--and using a very high-quality moving-coil cartridge and step-up system that was…
The accuracy of a hi-fi system's "soundstage" reproduction seems to be of paramount importance these days, just as a component must now have "transparency" to possess hi-fi righteousness. If the system in which that component is used doesn't give good soundstage, then the system's owner has definitely fallen by the wayside. But what defines a good soundstage? Stereo imaging must have something to do with it, I hear you all cry. (I would have said stereo imagery until Larry Archibald pointed out that imagery has far less to do with hi-fi than with good writing, something I'm sure we agree has…
With classical recording, we do have an original event. Composer, conductor, musicians, and even the designers of concert halls, work very hard to ensure that the listener to live classical music is presented with a real, musically balanced, image. All that is necessary, it might therefore be thought, is to record that image in such a manner that all spatial relationships are preserved as amplitude relationships between the two signal channels. Both a real stereo image and a true soundstage will be the undoubted outcome.
Yes, you're right. It hardly ever happens!
In general,…
As I wrote in this space last month, test-equipment manufacturer Audio Precision has loaned Stereophile a sample of their top-of-the-line SYS2722 system (footnote 1), which has both significantly greater resolution and greater bandwidth than the Audio Precision System One Dual Domain we have been using since 1989. The reviews you can read in this issue include the first measurements I have performed with this impressive piece of gear, though there are still a number of graphs I produced using our System One. In fact, with the equipment I tested using the SYS2722, I performed duplicate sets…
NEIL YOUNG: Chrome Dreams II
Reprise 311932-2 (CD). 2007. Neil Young, prod.; Niko Bolas, prod., eng.; John Hausmann, Rob Clark, Brent Walton, Tim McColm, Colin Suzuki, asst. engs. AAD? TT: 66:17
Performance ****
Sonics ****
Reprise 311932-2 (CD). 2007. Neil Young, prod.; Niko Bolas, prod., eng.; John Hausmann, Rob Clark, Brent Walton, Tim McColm, Colin Suzuki, asst. engs. AAD? TT: 66:17
Performance ****
Sonics ****
Never has the in-vogue term perfect storm been better applied than to Neil Young's wonderful Chrome Dreams II, which is sure to be tagged with another worn adage: "late-period masterpiece." Here several streams of events personal and public have coalesced to make this Young's most tuneful and together mix of his pre-set songwriting modes in quite some time…
The Ohm Walsh 5 displaces the Ohm F at the top of the Ohm line, and the current Walsh 5 production run represents a "limited edition" of 500 pairs worldwide. There's even a certificate of authenticity—hand-signed by Ohm Acoustics President John Strohbeen—packed with the speakers that makes it all official. I think that this is more than a clever marketing gesture and clearly demonstrates Ohm Acoustics' pride in their new flagship loudspeaker.
The entire Ohm line, and, in fact, the company itself, owe their existence to the Walsh driver developed by the late Lincoln Walsh (1903–1971).…
Some manufacturers (Bose, for example) have taken a design path I have dubbed "enhanced stereo," and which some folks might be more inclined to call "artificial stereo." These designs deliberately generate side reflections with the expressed idea of increasing the intensity of the lateral room reflections and thereby enhancing the spaciousness of the reproduced soundstage. I see this as a viable approach, but it must be understood axiomatically that such designs trade off timbrel accuracy for the illusion of a live soundstage. There is no free lunch. You can involve the listening room in…
Dick Olsher returned to the Ohm Walsh 5 in August 1988 (Vol.11 No.8):
The folks at Ohm would love to have us believe that there "is no place like Ohm." I know Dorothy believes that, but last time I listened to the Walsh 5 there were enough things wrong with it to spoil the Ohm-coming. To be sure, there was plenty of imaging magic; you might even say that, indeed, "there's no space like Ohm." But a slightly opaque and colored midrange seriously curtailed my enthusiasm for the speaker. All puns aside, I firmly believed back then that this was a speaker on the verge of greatness. So when…
Sidebar: Specifications
Description: two-way, floorstanding, reflex-loaded loudpseaker. Driver complement: Ohm-Walsh full-range driver and a titanium-dome supertweeter. Bass Frequency response: 25Hz–25kHz, ±4dB. Sensitivity: 90dB/2.83V/m. Nominal impedance: 4 ohms. Power requirements: 50W minimum, 500W maximum.
Dimensions: 17.5" x 17.5" at the base, tapering to 15" x 15" at the top; 43" tall. Weight: 95 lbs each.
Price: $4800/pair (1988); $6995/pair when last manufactured; no longer available (2007).
Manufacturer: Ohm Acoustics Corp., 241 Taaffe Place, Brooklyn, NY 11205. Tel…
In his July 2003 "The Fifth Element" column, John Marks enthusiastically wrote about the Benchmark Media Systems DAC1 D/A processor and headphone amplifier. Comparing its sound playing CDs with that of a three-times-more-expensive Marantz SA-14 SACD player, he concluded that the DAC 1's "Red Book" performance was at least as good as that of the Marantz, being "slightly more articulate in the musical line, and slightly more detailed in spatial nuances, particularly the localization of individual images in space, and in soundstage depth."
I wrote a Follow-Up review of the DAC1 in…