BSS Audio Omnidrive FDS-380, Руководство пользователя

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1.0 Introduction
Introduction
The OMNIDRIVE
TM
system represents a radical step forward in DSP processing
for loudspeaker management, incorporating BSS’s vast experience in crossover
design and combining two channels of 4-way crossover, parametric
equalisation, digital delay lines and limiters, and is designed for use in all areas
of sound control. A compact 2U chassis means reduced interconnections
cabling and rack weight, while increasing rack space availability. Major
facilities include password protection, automatic correction for HF response
with humidity and delays with temperature.
The user front-end is remarkably simple, combining a real-time graphical
display with an analogue-like output control section with led meters for full
indication of system performance. The screen shows crossover response, EQ
curves plus delay and limiter data in high-resolution graphics. System settings
can be stored in up to 60 user memories, for quick and easy setup.
The crossover sections can be configured as stereo 2, 3 or 4 way, with the
option of setting one stereo band as a mono-lo output for sub-bass processing.
Various filter types may be selected with slopes of 12, 18 or 24dB per octave.
Parametric EQ is provided as two sections of fully adjustable EQ per band of
processing, one section being optionally configured as a 0-180 degree
adjustable phase control, with polarity switching as standard through a
separate independent function. The EQ range is 15Hz to 16kHz, gain
adju/- 15dB, with a Q from 0.05 to 3 octaves, switchable between bell
or shelving response.
The limiters are located mid-band, an optimal configuration originated by BSS
and now widely adopted. Each band also incorporates a delay line, with
adjustable delay in unusually fine 10 microsecond steps up to 650 milliseconds
and displayed and adjusted in feet, metres or milliseconds.
Data Archive to PCMCIA memory card.
Optional Digital I/O cards.
Optional Humidity / Temperature probe for auto correction system.
MIDI Interface / Open Architecture port.
1.1 OMNIDRIVE TM
Loudspeaker
Management
System
1.2 Other features