QPS SERIES

FOUR CHANNELS PROFESSIONAL POWER AMPLIFIERS

Energize your Sound

QPS Series products are high-performance, versatile power amplifiers for both touring and install applications, using sophisticated Class-HD topology with four single-channel outputs or one/two bridged outputs, parallel or stereo. Three dip-switches allow setting the maximum output voltage peak for each channel among eight values. High-efficiency heat sinks and variable-speed fans can withstand the most extreme heat conditions ensuring steady power output stability over time. High quality, low distortion audio output, RCF reliability, and industry-standard speakON connectors make QPS Series the hassle-free solution for sound systems and permanent installation applications.

Fast response and low distortion

Stereo, parallel, bridge modes

Comprehensive protection circuits

Variable speed cooling

Signal, clip, fault led indicators

Limiter on each channel

HD Designed Driving Power

Our HD amplifier technology features a very efficient power output section with a design focused on musicality, maintaining a natural and clear sound at all frequencies, with smooth highs and a tight, high impact low end. The power supply rails continuously track the input signal for remarkable signal purity while preserving the high efficiency of the Class-D design. QPS amplifiers are bridgeable and maintain high reliability with complex loads as low as 2 Ohms nominal.

Remarkable Audio Performance

With a very high signal-to-noise ratio, QPS amplifiers also boast a very low total harmonic distortion, making it perfect for highly demanding music applications hence delivering perfect vocal intelligibility.

1 POWER CORD
Connect the power cord only to a mains socket outlet with a protective earthing connection.

2 BALANCED AUDIO OUTPUT (CH A, CH C)
Male XLR connector.

3 STEREO / PARALLEL SWITCH.
See the ‘Operation modes’ manual section.

4 BRIDGE LEDs (A+B) and (C+D).
When lit channels A and B (and/or C+D) are bridged (BRIDGE switches).

5 DIP-SWITCH SETTINGS AREA

6 CHANNELS BALANCED AUDIO INPUT
Female XLR connector.

7 CHANNELS SPEAKERS OUTPUTS
SPEAKON connector. See ‘Operation modes’ and ‘SPEAKON connector wiring’ manual sections.

Self-protecting Architecture

QPS amplifiers implement several safety strategies protecting both the amplifier and the sound system, including an effective peak limiting protection for the transducers. The temperature-controlled continuous variable speed double-fan system (front to back), combined with the high-efficiency heat sinks, allows the amplifier to maintain a safe, working temperature no matter the environmental temperature or the power output. The circuit is protected from overheating and short circuits, also including protections against infrasonic DC and Very High Frequency (VHF) peaks from non-musical signals that could damage transducers.

Customized Quality Control

All amplifier modules are subjected to rigorous quality testing during the production process. Each device is quality controlled with automated equipment and human supervision. Our QC process ensures that every amplifier module performs best off the production line. This unique system ensures extremely tight quality loops, securing a high overall quality level.

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