Floor Loudspeaker Reviews

JBL was founded 60 years ago, by Jim Lansing. Its history has been amply detailed in the book The JBL Story: 60 Years of Audio Innovation, by the late John Eargle's (JBL Professional, 2006). Although it is primarily known for its pro-audio loudspeakers, the Californian company has offered a steady stream of high-performance domestic loudspeakers to the home market, including the 1971 Paragon, the L100 bookshelf speaker, and the JBL 250Ti floorstander, all of which remained in JBL's catalog for 20 years. In 1990, JBL produced the Project K2 S9500 flagship speaker for the Japanese high-end market. The K2 Project culminated in the $60,000/pair DD55000 Everest system, with its cross-firing asymmetric horns, and the subject of this review, the Synthesis 1400 Array BG, was a spin-off from the K2 project. It features horn-loaded midrange and tweeters to attain a flat response out to a claimed 48kHz.

Loudspeakers are all about balancing conflicting variables: accepting that you can't have electrostatic transparency and horn dynamics; finding something to suit the size of your room and credit rating; and picking the best all-around compromise to suit your particular taste. Goldilocks had the right attitude for loudspeaker reviewing. All that too-soft/too-hard, too-hot/too-cold merely sets the scene; "just right" goes straight to the heart of the matter.

For exhibitors, showing off their products at audio shows is a crap shoot. The vagaries of arbitrarily assigned hotel rooms with unpredictable acoustics can play havoc with the sound of even the best-sounding systems. But over the years I've been attending shows, Joseph Audio's dems have always impressed me with how Jeff Joseph manages to set up his speakers so that they work with instead of against a hotel room's acoustics. Yes, Joseph's setup skills, going back to his days in audio retail, play an important role here. But his speakers, too, need to be of sufficiently high quality to benefit from those skills. And if they can be made to sing in a hotel room, they will also stand a better-than-usual chance of doing so in audiophiles' homes.

People come to high-end audio with different needs and expectations—some fairly reasoned, some slightly more highfalutin. Some listeners want to get as close as possible to an immersion experience, be it of a live performance or of some more idealized studio ecstasy. Others are enraptured by the status and sex appeal of big, hot-rod components, and simply dig gear—much as they might dig the visceral rush of a high-performance car. Still others compulsively upgrade their equipment in search of some unattainable perfection. But no matter the initial motivation, all roads eventually lead back to a love of music.

The penultimate stop on Bob Reina's British Invasion Tour of Affordable Loudspeakers (footnote 1) brings us to the doors of KEF. Although KEF is a large and well-established British firm, I've noticed that their product lines have not been as visible in the US as those of, say, B&W, Wharfedale, or Mission. In fact, the last time I heard a KEF speaker, it was the company's then-flagship design, at a Consumer Electronics Show nearly 20 years ago! Before that, when I lived in London, KEFs were ubiquitous, down to the older, entry-level designs tacked to the walls of the ethnic restaurants I frequented. My strongest KEF memory is a cumulative one: Every KEF speaker I've ever heard, regardless of price, venue, or setup, has always produced good, convincing sound.

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.