Select the Desired Crossover Mode

All models are equipped with a Crossover Mode switch. Before using, set the Crossover Mode switch to the desired position using a flat-tip screwdriver. The switch has a slot- ted shaft; insert the screwdriver tip into the slot and turn the shaft so the slot points to the desired mode. Do not change switch positions with power applied.

FULL RANGE: This setting uses the internal crossover net- work. Connect the full-range input signal to Speakon pins 1+ and 1-.

BI-AMP:This setting bypasses the internal crossover net- work and connects Speakon pins 1+ and 1- to the low-fre- quency (LF) driver and pins 2+ and 2- to the high-frequency (HF) driver. Signal processing ahead of the amplifier is required; the HF driver can easily be damaged if full range program is applied! Use a four-wire cable and an amplifier configured to operate in bi-amp mode.

BIAMP OPERATION- Signal processing ahead of the amplifier is required; the HF driver can easily be damaged if full range program is applied!

Make the Required Connections

All models are equipped with two Neutrik NL4-series air- tight Speakon connectors. The two connectors are wired in parallel, allowing for multiple cabinets to be connected in parallel by plugging one cabinet into another with a suitable cable.

Connector pinout is determined by the Crossover Mode switch setting. Full Range selection uses Speakon pins 1+ and 1-. Bi-amp selection uses pins 1+ and 1- for the LF driver, 2+ and 2- for the HF driver. There are pinout charts printed on the connector plate.

Maintain proper speaker and amplifier con- nection polarity throughout the entire system. All positive-marked loudspeaker terminals should be connected to positive-marked ampli- fier output terminals. This will provide the best possible low-frequency output from your sys- tem.

Speakon plug pinouts- The Speakon plugs that are con- nected to the loudspeaker cabinets should conform to the pin outs shown at right. The connectors are shown from the wire-insertion end and show the inside of the disassembled Speakon plug.

FULL RANGE

BI-AMP

EN

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QSC Audio ISIS Series user manual Select the Desired Crossover Mode, Make the Required Connections
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ISIS Series specifications

The QSC Audio ISIS Series stands out as a premier line of loudspeakers tailored for various professional audio applications. Designed with both clarity and power in mind, the ISIS series is ideal for situations ranging from live performances to installations in venues needing reliable, high-quality sound reproduction.

One of the most notable features of the ISIS Series is its cutting-edge Waveguide Technology. This innovative design enhances the speaker's dispersion characteristics, ensuring that sound reaches every corner of the venue without losing fidelity. This feature is particularly crucial in large spaces where uniform sound coverage is essential for audience satisfaction.

The series includes a range of models, each equipped with robust components that provide exceptional performance. For instance, the ISIS loudspeakers utilize high-efficiency drivers that deliver a wide frequency response, capturing both low-end warmth and high-end clarity. The integration of durable materials ensures that these speakers can withstand the rigors of regular use while maintaining their performance over time.

Another characteristic that sets the ISIS Series apart is the advanced DSP (Digital Signal Processing) technology integrated into the speakers. This technology allows for precise tuning of audio output, enabling users to tailor the sound to match the acoustics of the environment. Such flexibility makes the ISIS Series suitable for various setups, whether in theaters, houses of worship, or corporate events.

The ISIS speakers are also designed for ease of use. Features like multiple input options and a streamlined setup process make them accessible to both seasoned audio engineers and those new to sound systems. Additionally, the lightweight yet robust construction of the cabinets simplifies transportation and installation, making them an excellent choice for rental companies and touring outfits.

Moreover, the reliable performance of the ISIS Series is backed by QSC's commitment to quality, ensuring that these speakers deliver consistent results across different applications. With their advanced technology, user-friendly design, and versatility, the QSC ISIS Series loudspeakers are a powerful solution for anyone seeking to enhance their audio experience. Whether for live sound reinforcement or installed applications, the ISIS Series continues to set a standard in the professional audio industry.
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