Quad electrostatic loudspeakers have been unavailable in the United States retail market for the past few years because there has been no importer. In the past 12 months, MoFi Distribution has stepped up to develop a dealer network and provide service. Jonathan Derda, Mo-Fi's National Sales and Marketing Manager, described the new service center in Fairfax, Virginia that will service all vintages and versions of the loudspeaker.
REL Acoustics was displaying their new S/5 SHO 12" subwoofer at CES. Like other S-Series subwoofers that came before, the S/5 has a forward-facing, 12" active driver and a 12" passive downward-firing passive driver. The S/5 can be driven wirelessly, and employs the 3-stage, low-noise "limitless" electronics for a wide-dynamic range and increased power output.
Because the total 6-pack sets one back $24,000, I asked REL Acoustics' David Schultz if there might be a "Six-Pack light" version. Yes, he replied, we have the "poor man's six-pack," the REL Acoustics 212SE. Wireless-capable, the almost-70 lb, 212-SE sealed-cabinet enclosure stands 20" tall and uses two active 12" and two passive 12" drivers, all powered by the 1000W RMS class-D internal amplifier with a new low-noise 3-stage input circuit.
Sumiko teamed up a pair of Sonus Faber Amati Futura floorstanding speakers watch for JA's review in the March 2012 issuewith the $4500 REL Gibraltar G1 subwoofer to produce explosive, massive, but tightly controlled bass while playing the "Chinese Drum Poem" selection from disc 3 of the Burmester Demonstration Disc series. The REL G1 is a 108 lb, closed-box, front-firing 12" driver driven by a 600W, high-current amplifier. Sumiko's John Hunter set the gain of the G1 using a small remote. The G1 subwoofer fell totally silent when the music was free of deep bass content, as it should.
Makers of powered subwoofers fall into two camps: those that fit a high-powered amplifier and a single, large woofer into a relatively small, unobtrusive enclosure; and those that build two or more 10" woofers and an amp of moderate power into a larger, heavier enclosure.
At this year's CES, Sumiko's John-Paul Lizars introduced me to REL Acoustics’ new R528 SE sub-bass system. He described it as an "ultra-high output version of the R528" but also as a more compact version of the company's flagship Gibraltar 1 subwoofer. The R528 SE is half the weight (58 lbs instead of 108 lbs), 43% of the volume, and 61% of the cost of the G1 ($2750 instead of $4499). While the larger G1 has a 600W class-AB amplifier, the R528 SE has a 500W class-D amplifier. Both subwoofers utilize REL's aluminum-chassis, 12", carbon-fibercone woofer, but the R528 SE adds a downward-firing 12" passive radiator. Low-frequency response are not that different, with the R528 SE's 6dB point at 21Hz, and the Gibraltar 1's 15Hz. Many audiophiles and home-theater fans may end up favoring the more compact new subwoofer.
"I don't recall seeing your flagship, $45,000/pair, Nautilus loudspeaker recently at a show," I mentioned to Scott Rundle, US Sales Manager for British manufacturer Bowers and Wilkins.
On a very special Saturday night in early September—late winter in Australia—I was deeply moved by hearing Brahms' Symphony 1 in the concert hall of the Sydney Opera House complex. Perhaps it was Marek Janowski's fiery, inspired conducting, but I keep recalling the hall itself. Earlier that day, I had photographed—first from my hotel room, later from a ferry—the huge, nesting sail-like roofs, covered with a million white ceramic tiles, that enclose an opera theater, concert hall, and restaurant. Twenty-five years in construction and costing over $107 million, the Sydney Opera House is described in my Fodor's '98 Australia guide as "the most widely recognized landmark of urban Australia." Attending the concert that night—all 2679 seats were occupied—I found the acoustics lovely, dark, and rich.
Powerful, massive, and expensive, Revel's Ultima Rhythm2 subwoofer ($10,000) swept me off my feet when I first saw it in Harman International's suite at the 2013 Consumer Electronics Show. It outsizes, by 49 lbs and 2.6 cubic feet, Revel's previous flagship model, the Ultima Sub30, which I reviewed in the November 2004 issue. Its specs read like no other sub's: 196 lbs; 18" cast-frame woofer; dual 4" voice-coils; 4kW peak power from twin internal amplifiers that generate 1kW RMS; 115dB peak acoustic output; a fully configurable, high-resolution, 10-band parametric equalizer (PEQ); an internal crossover with high- and low-pass outputs; and PC-based setup via USB. The Rhythm2's patent-pending design is said to let just enough air move in and out of the cabinet to prevent any distortion-inducing pressure due to heating of the voice-coils. And its veneer, shape, beveled top edges, and bottom plinth exude the quality found in Revel's top-of-the-line floorstanding speaker, the Ultima Salon2, with which I was familiar.
Back in March 1998, Revel's Ultima Salon1 floorstanding loudspeaker generated quite a stir at Stereophile (Vol.22 No.3). Our reviewers were impressed by its seven designed-from-scratch drive-units, its ultramodern enclosure with curved rosewood side panels, exposed front tweeter and midrange, rear-facing reflex port and tweeter, and a flying grille over the mid-woofer and woofers. In the December issue (Vol.22 No.12), the Ultima Salon1 ($16,000/pair) was named Stereophile's "Joint Speaker of 1999" for its "big bass, timbral accuracy, low distortion, dynamics, lack of compression, and best fit'n'finish."