4
TD-000434 -01 -B
Introduction
Built for system integrators, the DPA series amplifi ers provide multi-channel amplifi cation with built-in DSP and enough power to drive wide varieties
of speaker systems with optimal energy effi ciency. The DPA Series consists of three light-weight, 2RU, four-channel amplifi ers with on-board DSP and
fl exible channel combining as well as 70V and 100V direct drive. These amplifi ers not only provide the power and processing to make your system
perform better, they offer outstanding effi ciency ensuring that energy costs are kept to a minimum over the life of the installation.
DPA amplifi ers feature Flexible Amplifi er 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 fl exibility allows DPA Series amplifi ers 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-amplifi ed 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 amplifi ers 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 amplifi ers 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 amplifi ers to draw current
from the wall in a more effi cient and controlled manner resulting in very high power from a single standard AC breaker. Additionally, the DPA Series
amplifi ers offer multi-stage sleep modes saving energy when possible without sacrifi cing performance. The result is an exceptionally powerful and
fl exible platform that offers very high effi ciency.
With four channels of amplifi cation plus signal processing in just 2RUs, the DPA series replaces equipment taking up as much as three times
the rack-space.
A single DPA Series amplifi er is a capable and sophisticated loudspeaker processor. Integration of processing and amplifi cation means that the DSP
knows exactly what the amplifi er is doing so dynamics processing can be far more accurate and effective. This approach employs both RMS and Peak
Limiters that allow the amplifi er and loudspeaker to produce more output without being pushed to distortion or destruction.
The on-board DSP offers four channels of cross-over fi lters, 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 amplifi ers provide Intrinsic Correction™, a
combination of fi ltering, limiting and loudspeaker knowhow that was fi rst 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 confi guration 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 Amplifi er Navigator
software on a PC or Mac, the DPA amplifi ers are an ideal amplifi er/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 amplifi er should need
returning for service.
Package Contents
1.
Quick-Start Guide TD-000350
2. Warning Information Sheet TD-000420
3. DPA
Amplifi
er
4. IEC AC Power Cord
5. Euro-style Connector Plug, 3-pin (4)
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)