Bowers & Wilkins manual PV1 Concept

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These effects are related to the ratio of the sound

wavelength to the dimensions of the enclosure. The

resulting pressure and force gradients allowed the

reintroduction of bending forces on the walls of the

sphere, which raised the level of radiated sound and

coloration. Going back to our soap bubble analogy it

could be likened to the way a bubble flexes as it moves

through the air.

The obvious course to ameliorate this effect was to add a

second driver to power the enclosure from the opposite

end. Because of symmetry, this effectively halved the

volume loading each driver and doubled the frequency at

which these two effects began to cause a problem. The

second prototype, shown here, used two 380mm (15 in)

diameter drivers, one mounted at each end of a steel

marine floatation device. This prototype was capable of

producing prodigious levels of clean, articulate bass, but

was hardly a viable commercial proposition. Furthermore,

the resonances were still only just outside the effective

bandwidth of the device, due to its large dimensions.

However, the stage had been reached where a more

compact and visually appealing product could be

developed.

PV1 - Concept

The PV1, launched in June 2004, was developed directly from this prototype. From a sphere that comfortably passes through a basketball hoop, it creates truly extended bass that defies its diminutive and gorgeous exterior in both quality and quantity.

Although the Pressure Vessel concept was proven in very large enclosure, it was obvious that its prime technical merit of reducing cabinet stress was always going to find a particular relevance with a smaller product. Indeed, the PV1 represents a joyous meeting of minds for both engineer and industrial designer.

The problems inherent to small subwoofers are often compounded further by the industrial designer’s desire to shave off centimetres here and there. The beauty of the PV1 is precisely that its non-bending cabinet design permits the use of a relatively thin aluminium shell, maximising the internal volume and therefore minimising the amount of equalisation required from the amplifier.

Early pressure vessel prototype

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Contents Development of the PV1 Problem Pressure Vessel ConceptPressure Vessel prototype PV1 Concept PV1 Technical information PV1 total harmonic distortion PV1 frequency responseSound output due to cabinet vibration 110W 105W 100V version ICEpower a/s

PV1 specifications

Bowers & Wilkins has long been synonymous with high-quality audio equipment, and the PV1 subwoofer stands out as a compelling offering in its range. Launched with an elegant design and innovative technology, the PV1 not only delivers deep, resonant bass but also complements modern home aesthetics.

One of the main features of the Bowers & Wilkins PV1 is its unique driver configuration. The subwoofer is equipped with a pair of 8-inch drivers that are strategically positioned to optimize sound dispersion. This design enables the PV1 to produce powerful bass frequencies without distortion, making it an ideal choice for both music enthusiasts and movie lovers. The drivers work in tandem with a high-performance 250-watt digital amplifier that ensures dynamic and accurate sound reproduction across various genres.

The PV1's enclosure is another hallmark of its design. Constructed from rigid materials, the cabinet is shaped like an oval, which not only enhances its visual appeal but also helps reduce standing waves and internal resonances, resulting in cleaner sound output. This attention to detail ensures that listeners experience the full depth of low frequencies, immersing them in their favorite music and films.

Bowers & Wilkins has also incorporated its innovative Flowport technology in the PV1. This system features a specially designed port that minimizes turbulence caused by air movement, thereby reducing unwanted noise and allowing for a more nuanced bass response. This results in a clean, articulate low-end that enhances the overall listening experience.

Another significant characteristic of the PV1 is its adaptability. The subwoofer is equipped with adjustable settings, allowing users to tailor the bass response to suit their specific environments and preferences. Whether placed in a small room or a large open space, the PV1 can be calibrated to deliver optimal performance.

For ease of integration within home entertainment systems, the PV1 includes a range of connectivity options, including high-level and low-level inputs. This versatility makes it compatible with various audio setups, ensuring that users can enjoy high-quality bass regardless of their equipment.

In summary, the Bowers & Wilkins PV1 is a premium subwoofer that blends cutting-edge technology with sophisticated aesthetics. With its powerful drivers, innovative cabinet design, Flowport technology, and adaptability, it provides an exceptional listening experience that can satisfy the most discerning audiophiles. Whether for music or home theater use, the PV1 is an outstanding choice for those seeking superior bass performance.