FEATURES & SETUP- REAR PANEL SWITCHES: MODE

MODE- This switch selects between BI-AMP, 2 CH, or BRIDGE modes of operation.

The indicator LED’s above the switch confirm the selection.

BI-AMP:This puts the amplifier into a “crossover” mode. CH 1 receives the low frequencies and CH 2 is receives the high frequencies. The crossover is a 4th order Linkwitz-Riley. The crossover frequency and low- frequency alignment delay are “programmed” with SIP (single in-line package) resistor networks . These small plug-in networks are installed from the side of the amplifier and plug into J4 and J5. WARNING: Do not insert or remove networks with the power turned on. See the SIP Network Selection and Installation section for more information. The HF ATTEN, HORN BOOST, and SUBAUDIO FILTER controls are active in BI-AMPmode. The blue BI-AMPLED on the front panel indicates when the amp is in bi-amp mode.

When to use BI-AMP mode: Use BI-AMPwhen you need to split the high frequency and low frequency signals to power separate driver types.

2 CH: This is the “normal” mode used for stereo and parallel input configuration. Each channel carries full-frequency signals (no crossover) and is independently controlled (gain, processing, output connection).

BRIDGE: This mode combines both output channels into one output. This mode is for driving a single, high-powered load with twice the “normal” voltage swing. This results in about 4 times the peak power and about three times the sustained power of a single channel. This mode uses the input, gain control, subaudio filter, and clip limiter of CH 1; CH 2's filter and clip limiter have no effect. The yellow BRIDGE LED on the front panel indicates when the amp is in BRIDGE mode.

When to use BRIDGE mode: Use BRIDGE mode when you need to deliver the power of two channels to a single 8 or 4 ohm load, such as a subwoofer. Do not use less than 4 ohm loads in BRIDGE mode.

BRIDGE MODE OUTPUT CONNECTION-

Note that speaker connection for bridge mono mode is different than other modes.

See section on Connections: Outputs for proper bridge mode output connections.

7

Page 6 Page 8
Page 7
Image 7
QSC Audio PL224A, PL230A, PL218A, PL236A user manual Features & SETUP- Rear Panel Switches Mode, Bridge Mode Output Connection
Page 6 Page 8

PL224A, PL236A, PL218A, PL230A specifications

QSC Audio is known for its high-quality professional audio equipment, and the PL series amplifiers are no exception. The PL236A, PL230A, PL218A, and PL224A are designed to meet the demands of live sound applications, touring, and installations, providing powerful, reliable, and efficient performance.

The PL236A is a versatile power amplifier capable of delivering 800 watts per channel at 4 ohms, making it suitable for a variety of applications. It utilizes Class H technology, which boosts efficiency while minimizing heat generation, allowing for cooler operation and longer lifespan. The PL236A is equipped with QSC's Advanced Thermal Management technology, featuring variable-speed fans that adjust to the temperature, ensuring optimal performance under various conditions.

The PL230A is another exceptional model in the series, offering 600 watts per channel at 4 ohms. This amplifier is perfect for smaller systems or as part of a larger configuration. Its compact design makes it easy to transport, while its robust construction guarantees durability in demanding environments. Like the PL236A, it is also designed with Class H architecture and Advanced Thermal Management, providing both efficiency and reliability.

For those in need of sub-bass reinforcement, the PL218A is a dual 18-inch subwoofer amplifier that provides significant power output, reaching up to 2400 watts at 4 ohms. Its design focuses on low-frequency performance, ensuring that it can handle even the most demanding bass signals without distortion. The PL218A incorporates QSC’s patented Power Factor Correction technology, ensuring optimal energy consumption and minimizing electrical load.

Finally, the PL224A is a dual-channel amplifier with 1200 watts per channel at 4 ohms, designed with flexibility and scalability in mind. It is perfect for driving full-range systems or can be combined with additional amplification for larger setups. The PL224A features a comprehensive limiter section that protects speakers from over-excursion and ensures clean audio output.

All models in the QSC PL series come with user-friendly rear panel controls for easy setup and operation, along with input XLR connectors and speakON outputs for secure and efficient connections. The amplifiers also feature a robust chassis design for enhanced durability, and their lightweight construction allows for easy transport and installation.

In summary, the QSC PL236A, PL230A, PL218A, and PL224A amplifiers exemplify modern audio technology, offering powerful performance, flexibility, and reliability for a variety of professional audio applications. With their robust design and advanced features, these amplifiers are ideal for sound reinforcement in live settings and permanent installations alike.
Top Page Image Contents