Buy Used C4-TOP by DB Audiotechnik

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C4-TOP Line Array Speakers

... The front of the loudspeaker cabinet is fitted with catches at the top and bottom for securing an optional transport lid, and mounted on the rear panel are ratchet strap guide plates, two hinge plates and four heavy duty wheels.


Amplifiers
The C4-TOP can be driven either by d&b's D6 or D12 dual channel power amplifiers configured for the C4-TOP. More detailed information on specific loudspeaker setups with d&b amplifiers is available either in the relevant loudspeaker or amplifier manuals.

DB Audiotechnik Line Array Speakers

d&b audiotechnik has been developing, manufacturing and distributing loudspeaker systems since 1981. The company operates internationally in the field of electroacoustics to produce high quality products for reinforcement of speech and music. Through the amalgamation of technological developments, system integration principals, quality of construction and standards of service, d&b pursues a systems approach that includes all aspects of design, development, manufacture and support. d&b's loudspeakers are used globally in rental and installation markets for events, multimedia, musicals, concert halls, theatres, opera houses, broadcast and everything from the smallest conference room to the largest stadium.

Towers - Towers are truss like structures used to support roofs and other trussing systems.. Used . . Used . ...

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Subs - A sub or subwoofer is a speaker dedicated to the reproduction of bass frequencies, usually from about 20 Hz to about 200 Hz. . Used . . Used . ...

Active - A active circuit works with an external power supply and usually at low power. A passive circuit operates directly on a signal using the power coming from the surrounding circuitry.
This is the . Used . reason why an active crossover is, for the most part, placed before amps, containing integrated circuits (and line level signal processing). On the other hand a passive crossover is placed . Used . after amplifiers where power levels are much larger . ...

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Line Array Speakers

Line array speakers make up a loudspeaker system to create a sound source that produces an evenly distributed sound output. The driver of each line array element is close enough to the driver of the next element to create constructive interference. The resulting sound waves go farther than sound waves from traditional loudspeakers. Line array systems date back to the early days of research in acoustics. Many old town halls and public venues still have old line source boxes which were found to project voice well though they are much smaller than horn-loaded speakers. These days, line array speakers use different drivers for high-, mid- and low-frequency passbands that must be in line. Each enclosure must be set up closely to form columns composed of these drivers. To increase the frequency range and maximum sound pressure, the number of drivers per enclosure must be increased. The orientation of line array speakers may vary. Vertical arrays are excellent for focusing sound at audiences without wasting output energy on ceilings or empty air above the audience because of its very narrow vertical output with a normally-wide horizontal pattern. On the other hand, horizontal line arrays have a very narrow horizontal output with a tall vertical pattern. For hanging concert speakers which are usually part of a concert reinforcement system, enclosures are set up together using a specialized rigging hardware and they hang from a single point. These line array speakers are curved backward at the lower portion so that the sound will reach more audience.