Maybe it's my selective perception, but there seems to be a resurgence of single-driver speakers. The Gemme Audio Vivace ($4100) uses a 4" Fostex driver in a complex horn-loaded enclosure. Sensitivity is 92dB, which is not high by horn standards, but the claimed bass frequency extension is 20Hz, which is extremely low by any standard. They played some organ music at the demo, and I can't say that I heard anything close to 20Hz. The bass was impressive by single-small-driver standards, however, and the speakers had the coherence that this sort of design is known for. Gemme Audio is a small company based in Montreal, with only two products: the Vivace and the Tanto ($5100), a more conventional two-way system. Getting into the crowded audio marketplace is a difficult feat for any speaker company that doesn't have a full product range; the fact that Gemme has been picked up by distributors in the USA, the United Kingdom, France, Sweden, and Ukraine tells me that they must be doing something right. Pictured: V-P Sales and Marketing Jean-Pierre Boudreau and the Vivace, with the Tanto lurking in the background.