Model 802
Loudspeaker System
The Bose
Model 802 represents the most significant advance in professional loudspeaker
systems since Bose first introduced its revolutionary Model 800. incorporating
a number of major departures from traditional loudspeaker design, the 800
series has since become the standard among professionals who demand systems
which produce the cleanest, most natural sound.
The Model
802 utilizes a multiple array of matched, full-range drivers. Their close
acoustical coupling results in a smoothing and broadening of individual driver
resonances, producing an unusually transparent and detailed sound. The
full-range driver concept also eliminates the need for a crossover, thereby
eliminating crossover coloration and yielding a sound which has exceptional
clarity and realism.
In each
Model 802 enclosure, the eight drivers are mounted on four separate facets for
smooth dispersion. Dual reactive air columns greatly increase the bass output,
while lowering distortion by reducing cone excursion at low frequencies. A
unique impedance control circuit, internal to the cabinet, lowers the
high-frequency power requirements by reducing the slope of the impedance -
versus - frequency curve.
Excellent
transient response is achieved though the use of relatively light cones powered
by massive magnetic structures. The smooth frequency response and excellent
spatial properties of the multiple-driver design also permit performers to work
very close to the speakers without causing feedback problems.
Each
driver incorporates an edge-wound, aluminum ribbon voice coil for exceptional
efficiency and power-handling capacity.efficiency is further enhanced though
the use of a 12-ounce ceramic magnet and a reinforced polymer frame, which
reduces magnetic flux leakage.
Matched
equalization not incorporated into other professional loudspeaker systems, is
tailored to the acoustics of the Model 802 and assures full frequency range
performance. The new Model 802-E active equalizer provides extremely detailed
equalization for smooth, wide response. Phone jacks and XLR connectors allow a
choice of unbalanced or balanced inputs. The 802-E's output circuit will drive
high-impedance or 600 Ω lines.
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