QSC DPA4.2 Manual Del Usuario página 4

Introduction
Built for system integrators, the DPA series amplifiers provide multi-channel amplification with built-in DSP and enough power to drive wide varieties
of speaker systems with optimal energy efficiency. The DPA Series consists of three light-weight, 2RU, four-channel amplifiers with on-board DSP and
flexible channel combining as well as 70V and 100V direct drive. These amplifiers not only provide the power and processing to make your system
perform better, they offer outstanding efficiency ensuring that energy costs are kept to a minimum over the life of the installation.
DPA amplifiers feature Flexible Amplifier Summing Technology (FAST). Depending on the model, 2000, 4000, or 8000 Watts of total power can be
distributed across one to four outputs. In addition, the DPA4.3 and DPA4.5, can drive 70V or 100V speaker lines directly from any one or all of the
four outputs, and the DPA4.2 can drive 70V or 100V speaker outputs from bridged channels. This flexibility allows DPA Series amplifiers to drive
(for example) two full-range, surface-mounted loudspeakers along with a subwoofer and one 100 V distributed loudspeaker line; or a high-power
subwoofer and a bi-amplified full-range loudspeaker; three 70V distributed loudspeaker lines and a subwoofer; or a single very high-power channel to
drive monster subwoofers.
The DPA Series amplifiers use QSC's third-generation class-D power amp design in combination with a custom power stage utilizing a new output
device (4.3 and 4.5 only). In addition, DPA amplifiers employ the proven PowerLight power supply in conjunction with Power Factor Correction (PFC)
(4.3 and 4.5 only) which aligns the current waveform with the AC mains voltage waveform. PFC enables the DPA Series amplifiers to draw current
from the wall in a more efficient and controlled manner resulting in very high power from a single standard AC breaker. Additionally, the DPA Series
amplifiers offer multi-stage sleep modes saving energy when possible without sacrificing performance. The result is an exceptionally powerful and
flexible platform that offers very high efficiency.
With four channels of amplification plus signal processing in just 2RUs, the DPA series replaces equipment taking up as much as three times
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the rack-space.
A single DPA Series amplifier is a capable and sophisticated loudspeaker processor. Integration of processing and amplification means that the DSP
knows exactly what the amplifier is doing so dynamics processing can be far more accurate and effective. This approach employs both RMS and Peak
Limiters that allow the amplifier and loudspeaker to produce more output without being pushed to distortion or destruction.
The on-board DSP offers four channels of cross-over filters, 5-band parametric EQ/Low-shelf/High-shelf, alignment delay and dynamics processing
— everything needed to optimize a loudspeaker system. Additionally when using QSC loudspeakers, DPA amplifiers provide Intrinsic Correction™, a
combination of filtering, limiting and loudspeaker knowhow that was first developed for QSC's WideLine line-array loudspeakers. Intrinsic Correction
compensates for the non-linearity in horn and driver design resulting in exceptional performance.
The DPA also includes manufacturers' recommended tunings for a number of the most popular passive loudspeakers. A system setup wizard helps
you select the right preset, or select one of the 20 configuration templates and create tunings that you can save in the user preset library.
Whether using the dedicated front panel user interface featuring a 400 x 240 display, rotary encoder and navigation buttons, or the Amplifier Navigator
software on a PC or Mac, the DPA amplifiers are an ideal amplifier/processing platform for installations.
Unpacking
There are no special unpacking instructions. You may want to keep the shipping material for the unlikely event that the amplifier should need
returning for service.
Package Contents
1. Quick-Start Guide TD-000350
2. Warning Information Sheet TD-000420
3. DPA Amplifier
4. IEC AC Power Cord
5. Euro-style Connector Plug, 3-pin (4)
TD-000434-00-B
6. Euro-style Connector Plug, 8-pin (1)
7. Euro-style Connector Plug, 3.5 mm, 2-pin (1)
8. Euro-style Connector Plug, 3.5 mm, 3-pin (1)
9. USB Cable (1)
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