This is a speaker we've been fairly intimate with over quite a period of time. Designed by John Bau, the SC-50i started out three years ago as an inexpensive speaker system ($330/pair) not sold through dealers.
One of the factors allowing it to cost so little was the clever adaptation of cardboard tubes, normally used as forms for pouring concrete pillars, for use as speaker enclosures. They have a number of advantages, other than low cost: their circular form helps eliminate resonance of the back wave within the enclosure; the material is rigid because of its shape, and is non-resonant due to its construction.
This smallish loudspeaker system has been getting high ratings in the English audio magazines for some years but was not available to US consumers until recently, when the small firm (literally a Mom'n'Pop enterprise, footnote 1) arranged for US distribution through Audio International.
The Spendor BC-1 is about as unimpressive-looking as any other smallish three-way loudspeaker, of which there are countless hundreds of models being made in the US at present. In fact, we were so ho-hummed by the mundane appearance of this speaker that we found it hard to connect the pair up and give them a listen.
These diminutive little sleepers have been available in the US for quite some time but have attracted little attention because (1) they have never really been promoted and (2) they are just too small to look as if they could be worth $430 a pair.
In the last issue we published a rather enthusiastic "Quickie" report on a small, $190/pair speaker system from a new company—the FMI Model 80. It was virtually devoid of low end, even as a stereo pair (pairing effectively doubles bass output), and slightly rough as well as a shade soft at the high end, but it had a quality of "aliveness" to it that almost defied belief. Was it a breakthrough in design? A new transducing principle? No, it was neither. In fact, the Model 80 looks like any one of those hundreds of little bookshelf systems that clutter, the pages of Stereo Review's "Hi-Fi Directory" in tedious profusion.
Every engineer has known for years that, while beryllium has excellent physical qualities for use as a speaker radiatorlight weight, rigidity, and a remarkable degree of internal dampingit is not usable as such because it cannot be stamped out like most other materials. It will not stretch, and any attempt to shape it simply causes it to split.
The Bose 901 has created more of a stir in audio circles than any other loudspeaker we can think of, with the possible exception of the original Acoustic Research system. Much of the 901's popularity is attributable to Julian Hirsch's rave report in Stereo Review, and there is no doubt but that Amar Bose's compellingly convincing ads had their effect, too. But these things alone could hardly account for the 901's popularity.
After a number of years of equipment reviewing, one gets rather blasé about "compact" loudspeakers. The appearance of yet another one that looks like hundreds of others and embodies no radically new innovations to pique one's curiosity is likely to be greeted with a passionate Ho-Hum.
Everyone knows that a lot of serious music listenersthat is, those who listen to music instead of using it as a conversational backgroundhave neither the space nor the money for a pair of typical floor-standing speakers, and must make do with bookshelf-type systems that are actually small enough to put in a bookshelf. But while the typical audio perfectionist will freely admit that there is a place in the audio sun for these dinky little speakers, he cannot really take them seriously, particularly when they're priced significantly under $100 each.