Buy Used SB18i by L-Acoustics

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SB18i Subwoofer

...ts feature a progressive profile allowing Laminar airflow and reduced turbulence noise even at the very highest operating levels. These combined properties contribute to the sonic qualities of the SB18i in terms of precision and musicality.

The control and amplification of the SB18i is managed by either the LA4 or LA8 platform. The onboard DSP filtering encompasses advanced crossover functions, system EQ, and dual thermal and over-excursion protection of the transducer. The L-ACOUSTICS amplified controllers offer the following drive modes:

* The ''standard'' mode using SB18i as a companion to KUDO, KARAi, KIVA-KILO, ARCS and featuring a low-pass filter at 60 Hz ([SB18_60] preset) or closely coupled to KARAi, ARCS and XTi with a low-pass filter at 100 Hz ([SB18_100] preset).
* The ''cardioid'' mode using SB18i as a companion to KUDO, KARAi, KIVA-KILO, ARCS and featuring a low-pass filter at 60 Hz ([SB18_60_C] preset) or closely coupled to KARAi, ARCS and XTi with a low-pass filter at 100 Hz ([SB18_100_C] preset).

The performance of the SB18i enclosure depends upon the choice of preset and physical system configuration. Made of high grade Baltic birch plywood, the cabinet features a pole mount socket for use with XTi or KIVA enclosures and standard M6 inserts for custom rigging options.

L-Acoustics Subwoofer

Founded by Dr Christian Heil in 1984, L-ACOUSTICS has revolutionized the Pro Audio industry with its legendary Line Source Systems. For the past two decades, L-ACOUSTICS has developed a reputation for creating innovative solutions to the most demanding sound reinforcement requirements. Commitment to the scientific method and product innovation have been our philosophies from the outset. But innovation doesn't stop with the product itself: with continued value enhancements, we offer you exceptional product durability. L-ACOUSTICS is more than a sound system manufacturer, it is a full service partner dedicated to customer support. The Best Sound Comes From One Source

Fogger - A Fogger or Smoke machine is an electrical device that creates clouds of artificual and hopefully non-toxic fog. The fog may come in different colors or smells and may be water or mineral based. It i. Used . s used for effects in theatre, staging, concerts and clubs.

Hazers by contrast create a more diffusive, expansive haze that is usually not a thick and is used to enhance other ef. Used . fects, such as lighting and light beams.

Ampere - The ampere (symbol: A) is the SI base unit of electrical current equal to one coulomb per second. It is named after André-Marie Ampère, one of the main discoverers of electromagnetism.

Th. Used . e ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 metre apart in vacuum, would . Used . produce between these conductors a force equal to 2×10–7 newton per metre of length....

Coners and Hinges - Corners are used to attach trusses and other rigging while hinges are used to allow attached rigging to swing open so other gear can be connected.. Used . . Used . ...

Working Lights - Stage or auditorium lights, independent of the main theatrical system, used during rehearsals and while the crew sets up or breaks down the stage. Also, low wattage lights used to illuminate offstage. Used . obstacles and props tables unseen by the audience.. Used . ...

Conventional Lighting - Conventional lighting is made up of stationary lights that can be moved, but only via manual means of adjusting, or focusing the fixture with a yoke.. Used . . Used . ...

Subwoofer

Subwoofers are speakers that are designed to reproduce low-pitched or the bass frequencies typically ranging from about 20 to 200 Hz for consumer products, below 100 Hz for professional live sound, and below 80 Hz in THX-approved systems. These are complete loudspeakers intended to enhance the low frequency range of loudspeakers covering higher frequency bands. Subs, another term for subwoofers, are made up of one or more woofers in a loudspeaker enclosure capable of withstanding air pressure while resisting deformation. These subs require more power to operate because they are bigger (usually between 20.3 cm and 38.1 cm in diameter). Enclosures are available in a variety of designs that differ by efficiency, bandwidth, size and cost. Designs include bass reflex with a port or passive radiator in the enclosure, infinite baffle, horn-loaded, and band pass designs. A multimedia home theater system in low-cost compact plastic cabinet that is said to be a subwoofer is more appropriately called a bass driver because it is too small to produce deep bass. Subwoofers are also powered by amplifiers. Active or powered subwoofers are driven by a built-in amplifier. Passive subwoofers have an external amplifier, subwoofer drivers and enclosures. Subwoofers are popular because of they can pack a large, low frequency punch in a small space, providing a powerful audio experience like being in a movie theater or a concert venue. They are installed in cars or at home as part of a home theater system which is a more common application. In both cases, the subwoofer or low frequency speaker is not considered a stand alone device but helps to reinforce the higher pitched sound produced from the speakers.