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HP Pavilion is a line of consumer-oriented personal computers originally produced by Hewlett-Packard and later by its successor, HP Inc. Introduced in 1995, HP has used the name for both desktops and laptops for home and home office use.
The HP Pavilion dv4 is a model series of laptops manufactured by Hewlett-Packard Company that features a 14.1" diagonal display.
A horn loudspeaker is a loudspeaker or loudspeaker element which uses an acoustic horn to increase the overall efficiency of the driving element(s). A common form (right) consists of a compression driver which produces sound waves with a small metal diaphragm vibrated by an electromagnet, attached to a horn, a flaring duct to conduct the sound waves to the open air.
The term loudspeaker may refer to individual transducers (also known as drivers) or to complete speaker systems consisting of an enclosure and one or more drivers.. To adequately and accurately reproduce a wide range of frequencies with even coverage, most loudspeaker systems employ more than one driver, particularly for higher sound pressure level (SPL) or maximum accuracy.
The output pattern of an industrial loudspeaker shown using spherical polar plots taken at six frequencies. Loudspeaker measurement is the practice of determining the behaviour of loudspeakers by measuring various aspects of performance.
The widespread use of the term 'digital' with speakers is a marketing ploy intended to claim better suitability with 'digital' source material (e.g., MP3 recordings), or impute 'higher technology' than some other speaker, and perhaps higher price. If pressed, manufacturers may claim the term means the product is 'ready' for input from digital ...
White noise devices are available from numerous manufacturers in many forms, for a variety of different uses, including audio testing, sound masking, sleep-aid, and power-napping. Sleep-aid and nap machine products may also produce other soothing sounds, such as music, rain, wind, highway traffic and ocean waves mixed with—or modulated by ...
The speaker was innovative in other ways as well and was produced, relatively unchanged, for about 10 years. LEAK 2060 loudspeaker with a sandwich cone woofer The original Leak 'Sandwich' hi-fi speaker was a large two-way system employing a 330 mm (13 in) low frequency element, with the sandwich cone, cambric roll suspension, and cast aluminium ...