SELECTING STEREO, PARALLEL, OR BRIDGE MODE

Each of the four Channel Pairs can be set for normal Stereo operation, Parallel Input mode, or Bridge Mono mode.

Stereo Mode- Each channel within the pair remains independent, and may be used for two different signals.

Parallel Mode - This setting connects both inputs of a pair together. One signal feeds both channels. Each channel's Gain control and speaker connection remain independent.

Bridge Mode- This setting combines both channels of a pair into a single channel with twice the output voltage. Use only the first chan- nel's input and Gain control. Set the second channel's Gain control at minimum. The load must be rated for 140V, and is connected as shown on page 6.

Stereo Mode - Switches 4, 5, 6 and 7 are all set to the DOWN position.

Parallel Mode - Switches 4, 5, and 6 are set to the UP position. Switch 7 is set to the DOWN position.

Bridge Mode- Switches 4, 5, 6 and 7 are all set to the UP posi- tion.

EN

Do not connect different inputs to each side of a channel pair when operating in parallel or bridge mode.

SETTING LOW FREQUENCY FILTERS

Each channel has a 12dB per octave Low Frequency filter to prevent saturation of the 70V speaker transformers. This reduces distortion and prevents amplifier overload.

The filter should only be turned off for driving subwoofers with special low frequency transformers. The 50 Hz set- ting usually works well with high quality speaker trans- formers. The 75 Hz setting works well with speech-grade speakers and transformers.

Each channel has its own switches for LF filter on/off and frequency selection.

The first channel uses switches 2,3. The second channel uses switches 8,9. Switches 3 and 8 turn the LF filter ON. Switches 2 and 9 select 50Hz or 75 Hz

TERMINAL BLOCK INPUTS

Each channel has a balanced 3-pin input. A full set of mating connectors is included in the carton. Wiring is connected with simple hand tools, and inputs can be changed quickly.

The input impedance is 12k ohm balanced or 6k ohm unbalanced.

Balanced connections are recommended for less AC hum and interference, especially with long cable runs. Unbal- anced connections may be suitable for short cables. The signal's source impedance should be less than 600 ohms. If the DataPort is being used, do not connect cables to the terminal blocks.

Balanced inputs: Strip the wire ¼ inch (6 mm) and connect to the plug as shown. Be sure to tighten the screws firmly.

Unbalanced inputs: Strip the wire ¼ inch and connect to the plug as shown. The middle pin must be connected to the

shield pin as shown. Be sure to tighten the screws firmly.

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QSC Audio CX108V Selecting STEREO, PARALLEL, or Bridge Mode, Setting LOW Frequency Filters, Terminal Block Inputs

CX108V specifications

The QSC Audio CX108V is a powerful and versatile amplifier designed for commercial audio applications, particularly in environments such as retail spaces, restaurants, and other venues where high-quality sound is essential. Known for its reliability and performance, the CX108V has become a preferred choice for integrators and sound professionals alike.

One of the main features of the CX108V is its ability to deliver high power output while maintaining exceptional audio quality. With a power rating of 1000 watts at 4 ohms, the amplifier is capable of driving a wide range of loudspeakers with ease. Its efficient Class D amplifier design ensures low heat generation and prolonged operational life, making it a perfect fit for installations that require continuous use.

Another notable characteristic of the CX108V is its lightweight and compact design, which simplifies the installation process. Weighing in at just 7.6 kg (16.8 lbs), the amplifier can be easily mounted in various locations, whether on a rack, shelf, or wall. This portability does not come at the expense of durability, as the chassis is built from robust materials to withstand the rigors of a commercial environment.

The CX108V is equipped with a range of input options, including balanced XLR and TRS connectors, allowing for easy integration with various audio sources. Additionally, the amplifier features a precision feedback circuitry that enhances its overall performance, ensuring consistent audio delivery even at high volumes. Built-in protections such as over-temperature and short-circuit protection ensure reliable operation, minimizing downtime in critical environments.

QSC’s advanced DSP technology further enhances the capabilities of the CX108V. The amplifier includes programmable signal processing features that allow for tailored audio management, including EQ settings, crossover adjustments, and delay configurations. This flexibility makes it suitable for a variety of installation scenarios, enabling sound professionals to fine-tune the audio experience to meet specific needs.

In summary, the QSC Audio CX108V is a remarkable amplifier that combines power, efficiency, and intelligibility. Its lightweight design, robust protection features, and advanced DSP capabilities make it a go-to choice for audio professionals seeking high-performance solutions for commercial audio applications. With the CX108V, QSC Audio continues its tradition of delivering products that not only meet but exceed expectations in sound quality and reliability.