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The Synchrony drivers, enclosures, and crossover circuits are all ground-up components, but in every case are important evolutions of longstanding PSB technologies. The Synchrony structures reflect continued development of PSB’s unique, proprietary cabinet-construction system, employing extruded-aluminum corners and tapered rear panels, in combination with elegantly veneered, 7-laminate wood-composite curved side panels, to form what is possibly the strongest, “deadest,” most non-resonant and coloration-free enclosures in the industry.
Synchrony continues PSB’s tradition of extended-response titanium-dome tweeters, in a new generation that extracts even greater high-output linearity thanks to multiple technical enhancements in its neodymium magnet structure, lighter, stiffer voice-coil components, and enhanced mechanical systems. Equivalent developments in the 6.5-inch and 5.25-inch cone woofers employed throughout the line and the Synchrony One’s 4-inch midrange as well, have concentrated on improving linearity and virtually eliminating dynamic compression. In addition to their distortion-arresting electro-magnetic elements (aluminum bullet, copper "shorted-turn," and aluminum magnetic focusing ring), the Synchrony cone drivers all employ a newly developed sandwich-laminate diaphragm material composited from woven fiberglass and compressed felted-complex natural materials, as well as ultra-rigid, cast-aluminum baskets. The sum of these parts is fast-reacting, pure reproduction that contributes impressively lifelike transients and unprecedentedly clean, high-output bass.
PSB’s care in crossover design and driver-circuit electro-acoustic integration, already widely admired, has been even further developed for the Synchrony line. All models employ fourth-order acoustic Linkwitz-Reilly sections, for the best possible unification of drivers into a single acoustic entity, with minimal errors in both the amplitude (frequency-response) and time (phase-response) domains, and insignificant static and dynamic distortions. Consequently, the Synchronys’ ability to conjure up depth, imaging precision, and spatiality from both two-channel and multichannel productions, is nothing short of uncanny.
Superb performers on their own merits, PSB’s latest flagship designs are equally unique in the degree to which work to answer the real-world problems of integrating the loudspeaker with the reproduction system and the listening room. All of the Synchrony models are engineered to produce stable, overwhelmingly resistive (and thus easy-to-drive) loads over their full high-power operating ranges: in short, they make amplifiers work better and sound better.
Each Synchrony is designed so that its “in-phase lobe” is balanced and even throughout the seated-to-standing vertical window of the prime listening area (hence their “tweeter-under” layouts), ensuring their superb sound under real-life listening conditions. The towers are extensively engineered so that their primary “floor-bounce” reflections, the Achilles-heel of any floorstanding speaker, actually help smooth and extend mid-bass and midrange response, rather than peak-and-dip roughening it as does virtually every other floor design. They are further supplied with simple but potentially very valuable port-tuning plugs, enabling owner or system-designer/installer to effect small, subtle, but very meaningful corrections in room-specific low-frequency smoothness on site. And the entire Synchrony line is extraordinarily superbly matched in timbre—a claim often made but rarely supported—so that any selection of floor, stand, and multichannel models may combine to form a tonally cohesive surround system.
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