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The SC28 is a 2 input, 8 output digital system controller
containing pre-programmed tunings for QSC loudspeaker systems. In
addition to the preset tunings, the SC28 also offers
user-adjustable equalization and delay.
Audio inputs and outputs are via balanced, line-level, analog XLR
connectors. Four outputs for each of the two inputs are provided
for use with 2 or 3-way systems plus subwoofers. Simple to
operate yet uncompromised in audio quality, the SC28 uses 48 kHz,
24-bit A/D and D/A conversion with 32-bit, floating point DSP for
wide dynamic range and low distortion. Advanced DSP is capable of
implementing tunings that incorporate IIR (Infinite Impulse
Response) as well as FIR (Finite Impulse Response) filters.
QSC system engineers have employed the power of the SC28's
FIR (finite impulse response) filters to implement
"Intrinsic Correction™" of the loudspeaker. The
goal of Intrinsic Correction™ is to provide a drive signal
to the amplifiers and loudspeakers that will result in the most
accurate acoustical magnitude, frequency and phase domain
performance possible. When properly implemented, Intrinsic
Correction™can compensate for many causal phenomena such as
the effects of waveguide acoustical impedance and loudspeaker
cone resonance. The result is a loudspeaker system with excellent
power response and extremely natural, uncolored sound across its
frequency band and coverage area. An array of loudspeakers with
Intrinsic Correction™ tunings will also be very responsive
to the use of equalization to compensate for array configuration,
acoustical conditions or user preferences.
Selection of tunings is accomplished by simply scrolling through
a list of QSC loudspeakers and selecting the configuration on the
LCD panel. A similar process is used to select the QSC amplifiers
being used and to configure amplifier input sensitivity for
proper dynamic protection gain structure. Settings for new QSC
products may be loaded into the SC28 via a rear-mounted USB
port.
Once the processor settings have been matched to the system, the
user or installer can take advantage of an integral, 6 band
parametric equalizer, high and low shelving filters and signal
delay to optimize for acoustic, environmental or aesthetic
considerations. Password protection is included to prevent
unauthorized tampering. The SC28 is easy to use and delivers
superb audio performance at a very affordable price.
Features
- Two (2) XLR line-level inputs
- Eight (8) XLR line-level outputs
- Front panel meters for all inputs and outputs
- Universal AC power input
- Rear-panel USB port for quick and easy loading of new
loudspeaker tunings
Front Panel Control:
- Quickly set up your loudspeaker system to perform and sound
as designed by QSC engineers
QSC Loudspeaker Selection:
- Select the QSC loudspeaker and configuration (2-way, 3-way,
etc.) and the SC28 instantly reconfigures itself for optimal
audio reproduction
QSC Amplifier Selection:
- Select the QSC amplifier being used to calibrate the
processor to the amplifier for proper balance and loudspeaker
protection
User-Adjustable Input EQ:
- Six (6) parametric filters with adjustable frequency, gain
and bandwidth
- High and low shelf filters with adjustable frequency, gain and
slope
User-Adjustable Delays:
- Sub delay adjustable from 0.00 to 50.00 ms
- Array delay adjustable from 0.00 to 20.00
Subwoofer Management:
- Select stereo or mono-summed subwoofer
- Adjustable subwoofer gain
- System is optimized for operation with or without
subwoofer
Loudspeaker Protection:
- Optimized thermal and excursion protection for each
transducer
- User-bypassable for output clip-limiting only
Channel Linking:
- Select linked or independent control of stereo channel
settings
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