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Ulrik Poulsen: It's actually close to three years now...It's a spinoff from other products we make. Actually, Alpha-Core manufactures magnetic cores and various materials and components for transformers...And we have a daughter company called Tortran that manufactures toroidal transformers. Anyway, five years ago we introduced a new product called Laminax. It's a combination of copper and aluminum with various kinds of dielectrics. This is laminated together continuously in various fashions to produce a material that's used as…
I was wrong.
Two of the subwoofers were provided, along with the necessary electronic crossover unit. Each 1204 unit contains four 12" woofers in a very solid sealed enclosure, with two facing to the front and two facing the rear. The electronic crossover has three controls, besides the AC power switch: a hardwire (footnote 1) bypass switch, a stereo/mono switch, and a subwoofer level control. In the stereo…
Description: Floor-standing dynamic subwoofer system. Drivers: four 12" cones. Nominal impedance: 8 ohms, 6 ohms minimum. Frequency response: 16–65Hz ±3dB. Sensitivity: 93dB, 16 to 60Hz. Maximum acoustic output: 120dB.
Dimensions: 39" H by 18" W by 18" D. Weight: 120 lbs.
Price: $1200 each (1988); no longer available (2012).
Model AC-1204 electronic crossover: Crossover frequency: 62Hz. Crossover slopes: 6dB initial, 18dB final. Gain: 1dB.
Dimensions: 19" W by 2" H by 10" D.
Price: $570 (1988); no longer available (2012).
Common to…
Briefly, while TrueHD has always supported 24-bit/96kHz resolution, the great majority of Blu-ray discs carry audio of no higher resolution than 24-bit/48kHz-barely better than what's found on CDs. That these audio tracks typically sound better than CD, may be due to better attention to production efforts, the use of the 24-…
I switched the power cord, XLR interconnects, and speaker cables to the Halo A 31 from the McIntosh MC303 three-channel amp, which fairly loomed over the new arrival. I switched on the A 31 and just lived with it for a week or so, listening…
Dolby Laboratories, Inc., 100 Potrero Avenue, San Francisco, CA 94103-4813. Tel: (415) 558-0200. Fax: (415) 645-4000. Web: www.dolby.com
MSR Acoustics, Inc., 61 Galli Drive, Suite A, Novato, CA 94949. Tel: (800) 497-2087, (415) 883-8053. Fax: (415) 883-8147. Web: www.msr-inc.com
Parasound Products, Inc., 2250 McKinnon Avenue, San Francisco, CA 94124. Tel: (415) 397-7100. Fax: (415) 397-0144. Web: www.parasound.com
Hecht's contributions to the consumer electronics industry were numerous. He invented the true soft-dome tweeter (patented in…
The high-fidelity industry seems a logical home for a jazz musician like Levinson, who once envisioned a career playing flugelhorn and double bass, but his voyage into audio was a detour that could be said to have begun at age 22, when he took a job working on a film about Joan Baez. "It was a joy to find people willing to pay me to do…
Levinson: The Rosebud is a $3000 speaker, the Classic is an $8000 speaker, and the Revelation is a $50,000 speaker. The amplifiers generally associated with the Rosebud are the Rosette, a $2000, 35Wpc unit, and the Passion, a 100Wpc unit for $3000. The Rosette is very compact—it's only 4 ½" wide and can sit on a shelf. It's extremely simple and unobtrusive. The Passion is for somebody who wants to go further. For an…