Flexible System Architecture
The demands placed on professional
sound reinforcement systems require a
range of solutions from small and simple
to huge and complex. One unifying theme
is that all are systems. That's why QSC
develops and manufactures all of the most
critical links in the sound reinforcement
signal chain: signal processing, amplification
and loudspeakers.
SC28
The SC28 is a 2 input, 8 output digital system
controller containing pre-programmed
tunings for QSC loudspeaker systems and
user-adjustable equalization and delay.
Audio inputs and outputs are via balanced,
line-level, XLR connectors. Uncompromised
audio quality is delivered by 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 FIR filters to implement
Intrinsic Correction.
Selection of tunings is accomplished by
simply scrolling through and selecting from
a list of QSC loudspeakers and amplifiers on
the SC28 LCD panel. Settings for new QSC
products may be loaded via a USB port.
Once processor settings have been entered,
the user 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.
PowerLight™ 3 Series
The PowerLight 3 Series is designed for the most demanding live audio users, whether in touring rigs or fixed installations.
|
|
The most requested features of the PowerLight 2 Series have been upgraded to deliver "the ultimate analog amplifier", plus the QSC DataPort ensures full compatibility with advanced digital processing and QSControl.net™. Three models range in power from 1250 to 4000 watts per channel at two ohms, all in two-rack space chassis that are only 15.6" (40 cm) deep and weigh between 22 and 24 lb (10-11 kg).
The flagship of the PowerLight 3 Series is the new 8000 watt PL380. This highly refined, all-switchmode amplifier incorporates nearly 40 years of QSC engineering experience, resetting expectations for Class D audio quality. The PL380 combines Class D amplification with the well proven PowerLight power supply, to deliver more than twice as much audio power as previous 2 rack unit PowerLight amplifiers. Unprecedented efficiency of 85% keeps AC power needs to a minimum, while delivering more energy to the speaker.
For lower power applications, the 2500 watt PL325 and 4000 watt PL340 offer the same feature set, matched to QSC's most advanced linear amplifier platform. Recent advances in power supply capacitors further improve power and low-impedance performance, while continuing to offer the best available audio performance.
In addition to higher power, the PowerLight 3 Series offers easily adjusted rear panel function switches with colorcoded LED indicators for high-pass filters, clip limiting input sensitivity and normal or bridged output.
For those users who simply want the highest performance amplifier to go with their existing processor or console, the PowerLight 3 Series is an ideal choice, offering high power, excellent value, and zero signal latency. When complete integration of amplifier control, monitoring and DSP is desired, the PowerLight 3 Series is fully compatible with the QSControl.net™ networked audio platform, with its comprehensive drag and drop DSP functionality. Simpler DSP requirements can be met by simply plugging a DSP-4 processing module into the rear panel of the amplifier.
 |
|
BASIS
BASIS processors include amplifier and loudspeaker management, configurable DSP and CobraNet™ digital audio transport in a compact 1RU device.
Automatic Power Limiting (Patent No. 6,940,981) is one of the most powerful of BASIS features. This technology creates a feedback loop between QSC speakers and amps that assesses the driver's thermal response to the true power delivered to it and uses this information to dynamically limit the power reaching the driver. Power limiting has no effect until the designated thermal limit is exceeded, beyond which power is reduced to a safe level. This maximizes each loudspeaker's performance without exceeding its safe operating range. BASIS processors are available in a number of different configurations with up to 8 analog or AES/EBU digital inputs and up to 16 analog outputs plus CobraNet input and output capability.
BASIS processors connect directly to the DataPort on select QSC amplifiers, providing analog audio as well as network control and monitoring of amplifier functions.
QSControl.net™
QSControl.net is a networked audio system platform that seamlessly integrates QSC amplifier and loudspeaker management, configurable digital signal processing and digital audio transport into a unified system administered through a user-friendly GUI. QSC BASIS, RAVE (520uz, 522aa and 522ua) and DSP 322ua devices all operate under QSControl.net, controlled from Venue Manager software. DataPort equipped QSC amplifiers can also be controlled and their performance monitored. Furthermore, multiple networked computers can control and monitor all units simultaneously. QSControl.net is AMX® and Crestron® compatible.
-- End |
