Feastrex Drive-Units
I like the idea of a speaker using a single full-range driver, requiring no crossover, so when Michael Tang of Michael Tang Audio emailed me, saying that one of the interesting products he's importing is the Japanese Feastrex driver, I made sure to check it out at SSI. There are two versions of this driver: the NF-5 ($2000), with uses an Alnico magnet, and the NF-5EX, with uses a field-coil magnet ($3000), requiring an external DC power supply. (Michael says he's used a car battery for this purpose.)
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As explained by Ken Kessler elsewhere in this issue, the English A&R Cambridge company made their name by producing one of the UK's most successful integrated amplifiers, the 40Wpc A60. This neatly styled model was in production for a decade or so and was the basis for a large number of good-sounding but inexpensive audio systems. These days, the company, whose products in the US sell under the Arcam banner, is a major British hi-fi manufacturer, with a product line that includes integrated amplifiers, tuners, loudspeakers, cartridges, and even a CD player. A&R was, I believe, the first UK manufacturer to obtain a player-manufacturing license from Philips, and with the product under review here, has broken new territory for a supposedly "audiophile" company in having a custom LSI chip manufactured to their own requirements.
Cycles can be seen in the fortunes of companies. Likewise cycles can be seen in the performance of companies' products. A particular range will appear to have got it just right, whatever "it" is. The designer may have hit a winning streak and thus steal a lead over the competition. C-J set a new state-of-the-art preamp standard in the late 1980s with their