"It's the difference between a stuffed dog and the real thing," said Gunter (George) Bischoff, of Melos Audio, on the difference between solid-state gear and tubes. "The real dog may piss on the rug, needs visits to the vet, gets fleas, has to be walked, but it's a living thing—a real dog. The stuffed dog requires no care, needs no maintenance, but has no life."

Probably best-known in recent years for their best-selling "baby" speaker, the Diamond, Wharfedale is one of the UK's oldest manufacturers of loudspeakers. The company was the subject of a management buyout earlier this year, following a rather unsettled period when it changed hands several times. Now with American distribution as of 1989 by Vector Research (footnote 1), the brand is reinventing itself in the US with two new ranges of loudspeakers, the 507.2 being one of the "audiophile" models. Both drive-units are made in-house; the first generation of Wharfedale loudspeakers to feature this 19mm aluminum-dome tweeter—the 506, 508, and 708—appeared in early 1985.