For a subjective equipment reviewer, whose writings are based as much on impressions as on observations, it is very important to approach a product without personal bias. Of course, all of us lay claim to this ideal, and some of us even manage to maintain the appearance of impartiality most of the time. But just under the reviewer's veneer of urbane professionalism and deliberative restraint lies a darker force—a leering hobgoblin of anarchy and mischief which scoops usually forbidden adjectives from a well of calumny and offers them for the writer's consideration as the perfect word to describe what he is trying to express. It's an ever-present temptation to accept the suggestion, because every critic harbors a secret urge to be another Dorothy Parker, trashing mankind's most earnest endeavors with devastating bon mots that will endure long after the writer has ceased to. Most of the time, the reviewer is able to resist the temptation to broadside a product, but some products, and the people they represent, make this very difficult. In fact, sometimes it is impossible.
I was so impressed by the Nelson-Reed 8-04/B loudspeaker's low-end range that I seriously doubted the add-on subwoofers could add enough of significance to be cost-effective.
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 mode, the low frequencies are kept separate, left from right; in mono mode, they are blended together for feeding to a single subwoofer. I will not resurrect the question of whether or not it is important to maintain stereo separation into the LF range, except to echo N-R's observation that there is no LF separation on analog discs to begin with; the lows are mixed together, to limit vertical excursions of the cutting stylus that could cause it to rise above the disc surface or, worse, dig into the aluminum base of the master disc.
According to designer Bill Reed, the Nelson-Reed 8-04/B was not originally intended to be an audiophile speaker system, but was instead designed as a high-quality monitor for the critical recording engineer who wanted to be able to walk from the studio into the control room and hear the same thing from his speakers that he heard "live." The fact that modern studio mike technique ensures that this could never happen is probably beside the point. The point is that reproducing the original power and dynamic range of live music is a formidable challenge, which practically no audiophile speakers have met successfully. On the other hand, so-called studio monitors, which can do that routinely, have tended to be highly colored and otherwise generally lousy in all areas of fidelity except output capability. The 8-04/B was an attempt to combine the strengths of both kinds of speaker, while avoiding their usual weaknesses.
"Grand Integra" is the name Onkyo has given to its line of perfectionist-oriented audio products, and the M-508 is the cheaper of Onkyo's two Grand Integra power amplifiers. (The flagship model is the $4200 M-510, reviewed by Larry Greenhill in Vol.8 No.8, featuring "high current capability," and rated at 300W continuous per channel.)
Although the idea of a $1000 moving-coil cartridge no longer shocks audiophiles, it is still not exactly what I'd call "Mainstream Hi-Fi." Audio magazine's 1984 Equipment Directorythe most complete such compendium published in the USlists only 10 models in this price range, not counting the Kiseki Lapis Lazuli at a whopping three-and-a-half grand! I have not tested most of these, nor have I tried any of the current models from the Japanese Koetsu firm, which was first with the gall to put a $1000 price tag on a cartridge. But I have tested a couple of one-granders during the past few years, and was sufficiently unimpressed to be hesitant about testing any more samples of what were beginning to look like nothing more than monumental ripoffs. So when Ortofon sent us the MC-2000, I was naturally less than enthusiastic about trying it.
The Ortofon MC-2000 may just have been the most impractical cartridge to be unleashed upon the audio community for some years. With a high compliance (20cu) that made it ill-suited for most tonearms, it also had a preposterously low signal output of 50 microvolts, which gave new meaning to the terms hum and noise. Few MC preamps had enough gain to deliver adequate driving voltage to a system, and none of those that did had low enough noise to be usable with the 2000. If the problem wasn't hum, it was hiss; if hiss was acceptably low, there would be too much hum. At least Ortofon had the sense to be aware of the problem and to do something about it, in the form of their T-2000 step-up transformer, which is the only device I ever found that would allow the cartridge to be operated without a constant background of hum or hiss. Despite all this, I have used the MC-2000 as my reference cartridge for the last two years. Why? Because of all the cartridges I've tried, it is by far the most accurate.
What, a high-fidelity product from Magnavox? The company that 20 years ago had a reputation for building massive, polished-console boom-boxes and was scornfully referred to in audiophile circles as "Maggotbox"? Some important things have happened to Magnavox since those days. Mainly, it became a subsidiary of the Dutch Philips company, co-developer of the laser video disc and now the audio Compact Disc. The Magnavox CD players are actually made by Philips for US distribution by Magnavox.
Several issues back, I mentioned a major "new wave" of power amplifiers coming along: the Adcom 555, the New York Audio Labs transistor-tube hybrids, and the latest Krells, for example. They demonstrate that major audible improvements are still possible in something as well-explored as the power amplifier. Not only that, some of these products demonstrate that superior performance can be combined with relatively low price.
PSB is a small, Toronto-based manufacturer that has been collaborating with Canada's National Research Council to try and take some of the guesswork, some would say magic, out of loudspeaker design.
The NRC, financed by the Canadian government, does basic research in many technological areas and makes its findings available to any firm wishing to use them. (Most other countries provide or encourage this kind of government/business cooperation. It is against the law in the US, to our great disadvantage.) The NRC's audio division, headed by physicist Dr. Floyd E. Toole, has devoted the last several years to the rather formidable task of defining, and assigning numbers to, the various aspects of loudspeaker performance that affect listeners' subjective assessments of their sound.
This is something we don't see too often: an entirely new approach to power amplifier design. As Quad points out in its literature for the 405, class-A operation of transistors provides the lowest distortion, but drastically limits the amount of power an output transistor can deliver without overheating. (Most transistor amps use class-AB output operation, in which each of a pair of power transistors handles part of each signal cycle and shuts down during the other part. Imperfect synchronism between the two halves causes the familiar "crossover distortion," which accounts for most solid-state sound. In class-A operation, each output transistor draws current though the entirety of each signal cycle, eliminating the crossover transition but doubling the amount of time current is drawn, and thus tending to cause the transistor to heat up more.)