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 am not in love; but I'm open to persuasion," sings Joan Armatrading in her song "Love and Affection," the track I was playing when I finally realized that my attempts to get a sound from the Apogee Caliper ribbon speakers approaching what I had heard at the 1986 Chicago CES were bearing fruit. And that sentence pretty much describes the creed of the professional audio critic. Each new product that arrives at your door could be the one to pass the J. Gordon Holt "goose-bump" test, to leave the hairs on your arms permanently erect. Did the Caliper full-range ribbons excite my previously quiescent nerve-endings? Did Bobby Ewing return from the dead? Did Sam propose to Diane? Will Alan Alda ever outgrow Hawkeye? What on Earth made Georgette marry Ted Baxter? Why can't Tubbs roll up his jacket sleeves like Crockett? How could a fine actor like Jack Klugman accept such a dreadful role? Some of these questions will be answered overleaf, but in the meantime, what is a ribbon speaker?

Whenever I think of cone speaker systems, I think of three brand names: Snell, Thiel, and Vandersteen. There are many good loudspeakers and many good designers and manufacturers, but it is these three who, in my opinion, consistently produce the best cone loudspeaker systems. All three companies produce full-range systems, transparent systems, and systems which mate well with a wide range of equipment. Their systems can be owned and enjoyed for years. Long after some fad or special feature has given a competing designer brief notoriety, these are the products you turn back to for music.

I must confess to a certain sentimental affection for Magnepan products. An early version of the Tympani did more to rekindle my interest in audio than any other speaker I can think of. In a world which seemed doomed to finding out just how small and dull it could make acoustic suspension boxes, the Magnepans reminded me that speakers could produce a large open soundstage, real dynamics, and musical life.

What I wanted to talk about briefly this month is the new Apogee Duetta, the baby of this speaker family. This particular baby will cost you the rather grown-up figure of $2300/pair; over here in the UK it costs a demonic £3300/pair, roughly double.

The latest edition of Audio's annual equipment directory lists 238 speaker manufacturers. At best I can claim to have heard one product from 10–15% of the manufacturers on this list, and the top of the current product line from a far smaller percentage.

Once upon a time, in audio's infancy, anyone who wanted better than average sound—average sound during the 1940s being rich, boomy and dull—had no choice but to buy professional loudspeakers. In those days, "professional" meant one of two things: movie-theater speakers or recording-studio speakers. Both were designed, first and foremost, to produce high sound levels, and used horn loading to increase their efficiency and project the sound forwards. They sounded shockingly raw and harsh in the confines of the typical living room.