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Istruzioni per l'uso PSB Speakers, Modello 6919217

Produttore : PSB Speakers
File Size : 5.66 mb
File Nome : fda45e3f-6dc0-f564-39bb-a5b74a9ac9a4.pdf

Lingua di insegnamento: en

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We hope that you enjoy our product for many years to come. This owner's manual will give you many useful tips about connecting, placing and using your loudspeaker. We recommend you read it thoroughly and it should answer all of your product related questions. If not, feel free to contact us through our website: Synchrony design background A little technical background might give you an appreciation of the technology that went into the design of your Synchrony product. Our intention in designing the PSB Synchrony range of products was to bring to bear all that we have learned in 35 years of crafting fine loudspeakers to create a line of high performance systems of truly elegant design. The Synchrony models use advances in three core technologies, the cabinet, the drivers, and crossover design. THE CABINET Cabinets for a high performance loudspeaker must be heavy, rigid and vibration free. Sound must come from the drivers only, never from the cabinet itself. Cabinets for Synchrony models are unlike any other. They are a blend of two very different materials: aluminum and wood. Front and back surfaces are from very solid double wall aluminum extrusions. The strength and stiffness of aluminum allows a very rigid structure that can be precisely machined to accept drivers and other components. Special contours can be achieved in aluminum that preserve the sonic characteristics of the drivers. The curved side panels are made from multiple layers of wood. Wood is stiff relative to its weight and has inherently high damping properties to absorb sonic energy that might otherwise color the sound. The sides of the Synchrony models are made from seven layers of 3mm MDF individually laminated/formed onto a curved surface which improves the panel's stiffness. Additionally, the sides are clad in finely finished veneers to enhance the beauty of the systems. DRIVERS Drivers (woofers and tweeters) are a key component to the performance of the new Synchrony models. A number of enhancements elevate them over previous components. Distortion Reduced Motor The field generated by a signal driving the voice coil reacts with the field in the magnetic structure's air gap. A long four layer voice coil normally results in high self induction and impedance that varies with excursion. Owner’s Manual 3 Owner’s Manual Owner’s Manual These two factors causing distortion in bass drivers are practically eliminated by the combination of an aluminum shorting ring within the magnet structure, the aluminum phase plug on the pole piece, and a shorted copper turn on top of the pole piece. The aluminum phase plug smoothes response and also contributes as a heat sink for the voice coil, reducing power compression. Long voice coils for all woofers (in a narrow gap) ensure high and uniform BL vs. excursion, to maintain dynamic linearity. The result is unbelievable clean bass/midrange reproduction. Laminated Sandwich Cone The cones are constructed from a fine weave fiberglass cone material along with a laminate of compressed, felted fiber laminate. This creates a stiff but still dampened cone that will remain stable even under very large sound pressures. In addition, a central dustcap gives a second connection between the cone and voice coil. This triangulation provides an incredibly rigid assembly for clean response to high level inputs. CROSSOVER DESIGN Great components and construction alone will not guarantee a good sounding system. More than anything, the crossover is what defines the sound of a speaker. The crossover determines the band of operation of each driver and determines how seamlessly the units transition from one range to the next. It sets the octave-to-octave balance that defines the personality of the system. At PSB, years of design experience, highly tuned sets of ears, and the unsurpassed facilities of the National Research Council in Ottawa, lead to superior crossover design. With the Synchrony One and Two Towers a unique driver/crossover arrangement minimizes the unwanted effects of floor bounce induced early reflections. These reflections interfere with the direct sound and contribute peaks and dips to the response. For the entire Synchrony series the crossover slopes are acoustical fourth order Linkwitz-Riley type with attention paid to the direction of the “in phase lobe”. The lobe, an inevitable effect of transitioning from driver to driver, is optimally aimed. Whether seated or standing, the frequency response of the system does not vary. Crossover components are chosen to be the best quality possible. Heavy multi-lamination iron cores are used for large value inductors. High gauge wire air cored inductors are used medium and small value inductors. All capacitors are especially low loss. Film capacitors are used for mid and treble sections. Tight component tolerances and exhaustive testing in manufacturing ensure that each system is a match to the engineering references, giving you the sound quality that PSB...

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