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Thomas J. Norton Posted: Jul 16, 2015 Published: Jun 01, 1992 0 comments
692.parapromo.jpgParadigm is not a new name to US audiophiles, but the Canadian loudspeaker company hopes to increase awareness of its products with their Monitor series, all members of which incorporate a similar design philosophy and drive-units. Heavy and apparently massively constructed, the top-of-the-line Paradigm Studio Monitors ($1899/pair) are the first commercial loudspeakers to pass my way with provision for tri-wiring: three sets of terminals on the back of the enclosures provide direct links to the crossover segments feeding each separate driver (or drivers, in the case of the low end).

Those crossovers use quasi-Butterworth filters, but there is, by design, little attempt to correct for driver aberrations in the crossover, a technique which Paradigm does not believe produces the best results. The wood-veneered cabinet is solidly constructed, making use of a combination of high-density composite hardboard and MDF—a technique claimed to reduce uncontrolled resonances. MDF cross-bracing is provided, and four heavy-duty spikes are furnished per speaker. (I used Tonecones in my listening for the simple reason that three spikes are self-leveling, four are not.)

Thomas J. Norton Posted: Jun 18, 2015 Published: Jun 01, 1992 1 comments
By now most readers will be familiar with the relatively new tuned-cavity method of low-frequency loading. Such designs have popped up all over the place of late, especially in those little satellite/woofer systems, but KEF can rightly lay claim to generating the design's theoretical basis, as JA described in his review of the KEF R107/2 loudspeaker in Vol.14 No.5 (May 1991). Essentially, the technique consists of loading the rear of a woofer in a conventional fashion—usually a sealed box—but also loading the front of the driver into another enclosure, ducted to the outside. Basically, the design acts as a bandpass filter with its response centered on the port-tuning frequency. The rolloff is smooth and rapid on either side of this frequency, providing a natural low-pass characteristic but thereby virtually mandating a three-way system. If properly designed, this configuration offers a number of theoretical advantages. The radiating element is actually the air in the port, which is low in mass. Low distortion is possible, as is relatively high sensitivity.
Jason Victor Serinus Sasha Matson Thomas J. Norton Posted: Jun 03, 2015 3 comments
One of the most delightful annual surprises of the now departed Las Vegas installment of THE Show was stumbling upon the NFS (Not For Sale) room. Assembled by the distinguished personage known as Buddha, it allowed visitors to become submerged in a combination of post-psychedelic revelry, good sound, lots of free booze, and a total absence of hawking...
Thomas J. Norton Posted: Jun 02, 2015 0 comments
Headphonium, Earphonium, Canjam. Every audio show has its own name for a section set aside to serve headphone enthusiasts, an increasingly active audiophile sub-segment. The one at this year's Newport show was smaller than the one I recall at the Rocky Mountain Audio Fest show last fall. But among the newcomers were headphones from Mr. Speakers (like the $1499 planar designs shown here)...
Thomas J. Norton Posted: May 30, 2015 3 comments
When longtime TAD/Pioneer speaker designer Andrew Jones moved on to design new speakers for German manufacturer ELAC, we expected big things, though not quite immediately. Speaker design takes time. But Jones and ELAC made a big splash at the Newport show with the new line of Debut speakers. The first model ready for demo was the baby of the Debut family, the B5. It's shown here with proud papa Andrew, with its 5.25" aramid-fiber woofer and 1" cloth-dome tweeter, and is expected to retail for $230/pair in early fall when the entire lineup should be available...
Thomas J. Norton Posted: Dec 31, 2014 0 comments
I went to Vienna. It was and is a beautiful city, with much of its late 19th- and early 20th-century character still intact. And while there will always be other claimants to the honor, it's arguably still the classical-music center of the planet. I managed to score standing room for a performance of Puccini's Turandot at the Vienna State Opera (as I recall, standing room at the time was the equivalent of about $1 US). Act 1 was so rough that it evoked catcalls from the unforgiving Viennese audience, but after that, things settled in nicely.
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Thomas J. Norton Posted: Oct 15, 2014 5 comments
It was no surprise that PSB/NAD had one of the best-sounding rooms at the show. PSB's new Imagine T3 loudspeakers (about $7000/pair, available by the end of this year) sounded both natural and dynamic. They each have three 7.25" woofers operating in a cabinet less than 2 cubic feet in volume. That would appear to be too small to properly load three woofers—until you hear them. A 5.25" midrange and a selected version of PSB's well-known 1" titanium-dome tweeter round out the driver complement.
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Thomas J. Norton Posted: Oct 12, 2014 4 comments
Even in a world where a five-figure price tag for a pair of loudspeakers is no longer a jaw-dropper, Raidho Acoustics' has carved out an honored place. I've been impressed by the company's small C1.1 speakers in the past. This year the D-1s were on show ($26,000/pair, including stands), driven by Constellation electronics. They made a bit less of an impression this time, but in a very different, and likely problematical room and what appeared to be excessive spacing that limited soundstage cohesion. This sort of setup was an issue in some of the other, larger demo spaces as well, probably in an attempt to offer a good listening compromise in a large seating area.
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Thomas J. Norton Posted: Oct 11, 2014 Published: Oct 12, 2014 4 comments
Perhaps the most over-the-top pieces of electronics at the RMAF, shown in static form only (if it's being demoed elsewhere at the show we haven't yet found it) are the Naim Statements. As seen here, the amplification system includes two monoblock amps weighing 220 lbs each, plus a preamp, the latter in the center. The amps are rated at 748W into 8 ohms, and 9000W (!) into 1 ohm. The amps are internally bridged, fully balanced designs.
Thomas J. Norton Posted: Aug 28, 2014 10 comments
In the late 1980s, KEF, then as now a leader in bringing new technology to loudspeaker design, developed a unique coincident driver that positioned the tweeter in the throat of the midrange/woofer cone. In a flash of inspiration, they dubbed it the Uni-Q, and the driver immediately not only found its way into the company's more upscale speaker designs, but also became a key element in a major European research project on room acoustics. That study's results appear to have been inconclusive, but the Uni-Q lives on as the defining element of KEF loudspeakers.

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