Buy Used BT7 by ServoDrive

Contact a Sales Specialist about used BT7 for sale.

BT7 Subwoofer

ServoDrive Subwoofer

Tungsten - Tungsten (formerly wolfram) is a chemical element in the periodic table that has the symbol W (L. wolframium) and atomic number 74. A very hard, heavy, steel-gray to white transition metal, tungsten i. Used . s found in several ores including wolframite and scheelite and is remarkable for its robust physical properties. The pure form is used mainly in electrical applications but its many compounds. Used . and alloys are widely used in many applications (most notably in light bulb filaments and in space-age superalloys).

Pure tungsten is steel-gray to tin-white and is a hard metal. Tungsten can be ...

Discharge Lamp - A high powered light source produced by an arcing electrical discharge between two electrodes suspended in a glass tube filled with gas, usually high or low pressure sodium gas, xenon, mercury vapor, . Used . or metal halide. This type of illumination is limited to applications such as followspots and projection, where dimming is accomplished by mechanical instruments. Many newer generation mov. Used . ing lights use discharge lamps, dichroic filters and mechanical dimming shutters....

Motors - Motors are any electrical or mechanical device used to power lifts that aid the ground support crew in placing gear up onto stages or trusses.. Used . . Used . ...

Auxiliary Output - A seperate line level output from a sound console that is to be used for foldback or monitoring that does not use up another main output. Each in channel has a path to the Auxiliary bus. It is also . Used . useful to send a signal to a separate effects processor.
. Used . ...

Strip Light - Strip lights, also known as Cyclorama (Cyc) lights are long housings typically containing multiple lamps arranged along the length of the instrument and emitting light perpendicular to its length. Lam. Used . ps are often covered with individual gels of multiple c . 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.