Floor Loudspeaker Reviews

The Model R107 represents the flagship of KEF's Reference Series, and is second only to the Professional Series KM-1 in KEF's product line. Anatomically, the 107 resembles a person. Beneath a decorative "hat," there's a special head assembly akin to the head on the old Model R105. This head assembly contains the brains of the 107, namely a T33 ferrofluid-cooled tweeter and an improved version of the classic B110 midrange driver, featuring a better voice-coil and a new polypropylene cone. The nerve center is also here, in the form of two passive dividing networks and load-impedance equalizing network. Level equalization of the drivers is performed actively within the KUBE, the second brain of the 107—about which you'll hear more shortly.

I've never heard a pair of the Italian Sonus Faber speakers I didn't like. What I've never liked was the US price: too high. And then you have to put them on costly stands. Plus, you're paying a premium for the magnificent woodworking and exquisite design—something I wasn't into, since I live with my stereo in a basement office/workshop/listening room some (who shall remain nameless) refer to as the "habitat for inhumanity."

A reviewer's life is not all fame and fortune. There are downsides, too, one of which is that, while many great-sounding components pass through your listening room, only a few get to stay there on anything like a permanent basis. (And that involves money changing hands, as in [gasp!] "purchase.") Before I bought my long-term reference loudspeakers—a pair of B&W John Bowers Silver Signatures—back in 1994, the speakers that had spent the most time in my 2900-cubic foot listening room were a pair of Thiel CS2 2s. I reviewed the '2 2 in the January 1993 issue of Stereophile (Vol.16 No.1), and although it was relatively affordable ($2250/pair at the time of the review), it did most of what I wanted a speaker to do. Other than a limited dynamic range in the bottom audio octave and a slightly exaggerated top octave, the CS2 2 sounded effortlessly smooth and free from coloration throughout the midrange and treble. It was also a real imaging champ.

Got a garage, a router, and a band saw? Poof! You're a speaker designer. How many audiophiles dream of buying some raw drivers, some MDF and veneer, building a baffle, soldering up a computer-designed crossover, and assembling the Shmendrick Audio 2001? Plenty.

Audio Artistry's Beethoven is the banner model of the company's Composer series (footnote 1), which includes the entry-level Vivaldi as well as the Dvorak I reviewed in the April 1996 Stereophile (Vol.19 No.4, p.204). Like the Dvorak, the Beethoven is a four-piece, bi-amplified, dynamic dipole design; unlike the Dvorak, the Beethoven has been taken to the nth degree of refinement.

A science-fiction parable I read too many years ago to remember who wrote it used the image of a glass jar stuffed with colored plastic spheres. The story's protagonist was asked whether the glass was full. "Of course," was his reply, whereupon a hidden faucet was turned, the jar filled up with water, and fish swam in the spaces between the balls.