User Manual

12
GENERAL INFORMATION
Thank you for having chosen a PROEL product.
DPX PFC is a series of ultra-lightweight power ampliers able to provide, for professional mobile and xed PA systems,
a huge amount of power and the maximum performance and portability in a very aordable package.
Thanks to the high-density Class D technology employed in the output stages, we’ve been able to build very powerful
ampliers in an ultra-compact and lightweight package. The extremely ecient Switch Mode Power Supply (SMPS) with
Power Factor Correcon technology (PFC) helps to reduce further the weight and provides universal mains operaon,
delivering constant energy to the loudspeakers regardless of the AC line voltage uctuaons and eliminang the need
for market specic power supplies and related reliability issues.
All models feature a built-in 24dB/octave stereo crossover with BI-AMP and HIGH-PASS opons, for easily ltering a
2-way system without the need of addional outboard. Fast-aack precise CLIP LIMITERS guarantee maximum output
without distoron, while a comprehensive protecon system safeguards both the speakers and the amplier.
The electronics is hosted in a feather-light all-aluminum case, able to provide an ecient cooling and, at the same me,
protecon and durability over the years.
DPX PFC are power ampliers oering extraordinary value to professional entertainers, DJ and sound engineers looking
for massive output, excellent performance and absolute portability.
INSTRUCTIONS
1. Power switch
Amplier is "ON" when the switch is in the "I" posion.
2. Power indicator
Green LED: when lighted indicates amplier has been turned on and AC power is available.
3. Channel LEVEL Control
Rotary level control: in STEREO and PARALLEL operaon it aenuates the level of the signal sent to the correspondent
channel of the amplier, while in BRIDGE operaon the channel control 1 operates as single control for the channel
pair set as bridge.
The aenuaon ranges from “-80dB" fully closed (the signal is completely aenuated) to “0” fully open, nominal level
(the signal is not aenuated in any way, so is fed to the amplier channel at the same level at which it arrives on input).
4. Channel SIGNAL METER Indicator
These are ve green LED those indicate the presence and the level of the signal at the correspondent amplier channel
input.
5. Channel LIMIT Indicator
Red LED illuminates when the channel's output is limited. When this LED ashes reduce the input signal level.
6. Channel PROTECT Indicator
Red LED illuminates when the correspondent channel is in protect mode for one of the following reasons:
• The heatsink reaches a temperature above the normal working limit.
• There is a short circuit at the amplier output wires.
• The amplier output stages are faulty.
Consequently the channel is muted unl the reason of fault is removed.
7. BRIDGE mode indicator
Yellow LED illuminates when the channel pair is in bridge mode.
NOTE: When the channel pair operates in BRIDGE mode SIGNAL, LIMIT and PROTECT LED indicators illuminate
simultaneously, the signal is sent to the channel 1 input only and controlled by channel 1 level control only.
8. PARALLEL mode indicator
Yellow LED illuminates when the channel pair is in parallel mode.
NOTE: When the channel pair operates in PARALLEL mode the signal is sent to the channel 1 input only and controlled
by channel 1 and channel 2 level controls for the respecve amplier channel, the SIGNAL, LIMIT and PROTECT LED
indicators illuminate correspondingly.