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Ever since I installed dedicated power lines for my multichannel system, I've been wrestling with the issues of surge protection, power conditioning, and voltage regulation. I start with a bias based on decades of happy listening without being concerned about any of these problems, and my belief that competent electronic components must be, and are, designed to perform in the real world. After all, whether the device's AC power supply is a traditional transformer-bridge-reservoir or a switching supply, its output should be a DC source that is sufficient to let the active circuitry meet its…
The PS Audio Power Director 3.5 ($995) contains three of PS Audio's high-current Ultimate Outlets: two connected to four receptacles each, and the third connected to two, for a total of 10. The UO technology is based on a large balun (transformer) to block line noise. However, useful bells and whistles have been added: 1) Each of the three UOs can be programmed for on/off delay or to remain always powered; 2) additional filtering and isolation are added between the UOs; and 3) coax connections on the rear panel serve to block voltage surges that might otherwise enter through a cable or…
Sidebar: Records in the Round
REVUELTAS: Homenaje a Revueltas Werner Herbers, Ebony Band; Juan Carlos Tajes, reciter Channel Classic CCS SA21104 (SACD) This selection of Revueltas' works includes his most famous, Sensemayá, and, arguably, his greatest, Homenaje a Federico Garcia Lorca. Played with style and sympathy and recorded with transparency and impact, this is one of the most satisfying multichannel discs yet.
GRAHAM ASHTON BRASS ENSEMBLE: Music for Organ, Brass, and Timpani Duncan Patton, timpani; Anthony Newman, organ; Graham Ashton Brass Ensemble Sonoma CSNR 001 SA (…
"Bugger!" A Pennsylvania state trooper had stepped out from behind the overpass on the Turnpike and was aiming his radar gun straight at me. I reflexively jammed on the anchors, which was a) pointless and b) downright dangerous, considering I was in the middle of a phalanx of cars and trucks all cruising 5-10mph over the speed limit. But what can you do?
I was driving home from Indianapolis, where I'd had an intense three days at Expo 2004, the trade show promoted by the Custom Electronic Design and Installation Association (CEDIA). The 12-hour car trip allows for a more effective…
High-end-audio manufacturers are both more and less adventurous than their more mainstream contemporaries. While mainstream-audio manufacturers will almost invariably change their models every year, the changes are more often than not cosmetic—at least in between successive models. High-end manufacturers, on the other hand, will keep the same model in the line for several years, but make cosmetically invisible refinements along the way.
Vandersteen has been one of the most conservative companies in that respect; the original Model 2 underwent only one significant cosmetic change in over…
Dual-input, screw-type barrier terminals, for either the recommended bi-wiring or for bi-amping, are located at the rear of the enclosure, along with level controls for both the midrange and tweeter. These level controls are limited to a useful range of +2 to -3dB.
So far, the description of the 3A tracks that of the 3 almost down the line. But the 3A incorporates a number of those invisible refinements. The woofer/acoustic coupler interaction has been modified for a more extended bass response (though the specs don't reflect any change here). The acoustic coupler itself has benefited…
The sound of the 3A was not entirely at odds with my impression of Vandersteens in the past—a little warm and forgiving rather than analytical and detailed—which is why I didn't immediately look for solutions. But after a couple of days of this, I was certain that something had to be done. My first reaction was to rearrange the listening room and try other setups—the diagonal setup I'd chosen didn't allow me to try the setup guidance suggested by Vandersteen in their excellent owner's manual. I wasn't concerned about the tilt-back of the 3As, as I had carefully adjusted that aspect of the…
However, the introductory drumstrokes on the Jurassic Park soundtrack (MCA MCAD-10859) did cause the speaker to break up at realistic—though not unreasonable—levels. The drumstrokes didn't cause the woofer to bottom, but did result in a distorted, fluttery sound until I turned down the volume to a level that degraded the sheer visceral impact of the piece. I wouldn't expect this to be a problem in a smaller listening room (mine has a volume of about 5000 cubic feet. I have found this particular passage to be a problem for other loudspeakers—including the Infinity Epsilons when they're driven…