QSC Audio ISIS 215PCM user manual Preparation for First USE- Amplifier Gain Controls

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PREPARATION FOR FIRST USE- Amplifier Gain Controls

Adjusting the Gain Settings of the Amplifiers

Ordinarily, the Gain controls of the amplifiers are left set at full gain. This is not recommended for first-time users of freely- configurable DSP. Freely configurable DSP, while being the most flexible and desirable, will do precisely what the user configures it to do. This may not be the expected, desired result and could damage your speakers or hearing. For this reason, QSC recom- mends the initial “learning” sessions with the 215PCM be carried out with the amplifier Gain controls set at their minimum useful settings.

Each of the two cooling air exhaust vents (one on each end of the cabinet) has two small, rectangular openings for adjusting the Gain controls. The exhaust vent closest the wheels has the access holes for the Subwoofer amplifier. The exhaust vent closest the handles has the access holes for the Top Box Amplifier.

Below, the illustration shows the location of the Subwoofer amplifier’s gain adjustment access holes. The Top Box amplifier’s access holes are on the vent located on the other end of the cabinet (left, as viewed). The access holes are not labeled. This is to discourage gain tampering after the 215PCM is set up. Use a 6- inch #1 flat blade screwdriver or similar tool. Fiberglass-shaft TV adjustment tools work well, are nonconductive, and won’t scratch equipment easily. Use a flashlight to aid in locating the gain control.

Gain control adjustment access holes (Sub- woofer amplifier shown). The lower hole accesses CH1’s gain control. CH2’s gain control has no effect because the Subwoofer amplifier is configured in bridge mono mode at the factory. Access is available for CH2’s gain control for users that modify the 215PCM. Note that modifications may void warranty.

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Contents Integrated, Self-Powered-Self-Processed, Industrial Systems Isis 215SBImportant Safety Precautions Explanation of Symbols Table of Contents Introduction 215PCM Powered Control Module HighlightsINTRODUCTION- General Overview Composilite215PCM Front INTRODUCTION- Technical Overview Technical OverviewINTRODUCTION- Block Diagram For 215SB Subwoofer Only Users Unpacking and InspectionQSC shipping box should contain For 215PCM Powered Core Module Users Turn on the 215PCMAdjusting the Gain Settings of the Amplifiers Preparation for First USE- Amplifier Gain ControlsAC Power Switch CONNECTIONS- AC PowerUse only heavy-duty 12 or 10 ga. extension cords RS-232 Connection 215PCM only CONNECTIONS- RS-232 Processor Configuration ConnectionTo Configure a Processor 215PCM only Important pointsCONNECTIONS- Mode Switch and Signal Routing Mode Switch 215PCM onlyAudio Connections CONNECTIONS- Audio Connections XLR InputsXLR Inputs CONNECTIONS- XLR Connection Recommendations and Pinouts XLR ConnectionsCONNECTIONS- Post Processor Outputs Terminal Block Connector PinoutsPost Processor Outputs CONNECTIONS- DataPort QSControl users only What is a DataPort?DataPort Connections CONNECTIONS- Output to Top Boxes Speakons Output to Top BoxesUSE- Cooling Air Inlet and Exhaust Vents Cooling Air Inlet and Exhaust VentsUSE- AC Power Switch and LED Indicators LED IndicatorsUSE- LED Indicators and Important User Caution Important User CautionSoftware Installation System RequirementsGeneral Use Guidelines for Freely-Configurable DSP Factory PresetsConfiguring the Processors PresetsHow to Save Configurations into a Processor’s Preset Processor Use Configuring the Processors Discrete Discrete 2.1 Checklist Processor Use Configuring the Processors 3-way Mono Stack Combo Mode preferred Discrete Mode optionalTroubleshooting 215PCM won’t turn on when the Power switch is operatedAudio time alignment isn’t right Troubleshooting Specifications- Isis 215SB Specifications- Isis 215SB Acoustic Performance Connector 215SB Specifications Frequency RangePower Handling4 Wiring of ConnectorSpecifications- Isis 215PCM 215PCM System Specification DescriptionSpecifications- Isis 215PCM Amplifiers Amplifier SpecificationsSpecifications- Isis 215PCM Processors Digital Signal Processor SpecificationsContact Closure Feature APPENDIX- Contact Closure Wiring DetailsWiring Diagram for Contact Closure APPENDIX- RS-232 Pinout and Pin #9 Usage Note RS-232 PinoutProduct Warranty Disclaimer

ISIS 215PCM specifications

The QSC Audio ISIS 215PCM is a powerful loudspeaker designed to meet the demands of professional audio applications. Known for its exceptional sound quality and robust construction, the ISIS 215PCM is engineered to deliver a superior listening experience in various settings, including live events, concerts, and installations.

One of the main features of the ISIS 215PCM is its dual 15-inch low-frequency drivers, which provide deep, resonant bass and a wide dynamic range. This design allows for high SPL (Sound Pressure Level), making it suitable for large venues. The enclosure is strategically designed to enhance performance by minimizing distortion, thus ensuring clear audio reproduction even at high volumes.

The ISIS 215PCM is equipped with a high-frequency compression driver coupled with a wide dispersion horn. This combination yields excellent high-frequency response and seamless integration with the low-frequency drivers. The dispersion pattern has been meticulously engineered, enabling consistent sound coverage throughout the audience area, which is essential in live sound applications.

In terms of technology, the ISIS 215PCM features advanced acoustic design principles that optimize both performance and durability. The enclosure is constructed from high-grade plywood and reinforced to withstand the rigors of touring and installation, while the dual ports facilitate enhanced airflow and reduced turbulence, resulting in accurate sound reproduction.

Additionally, the loudspeaker employs a sophisticated passive crossover network that effectively separates frequencies, allowing each driver to operate within its optimal range. This technology minimizes phase issues and ensures that the transitions between the low and high frequencies are smooth and natural.

Portability is another significant characteristic of the ISIS 215PCM. It includes robust handles for easy transport and installation, making it a great choice for sound engineers and technicians who need to set up and break down equipment regularly. The professional-grade connections further enhance convenience and reliability in diverse applications.

Ultimately, the QSC Audio ISIS 215PCM is a remarkable loudspeaker that combines innovative technologies, premium materials, and thoughtful design. It is ideal for audio professionals seeking a reliable solution that delivers exceptional sound quality and performance. With its versatility and robust features, the ISIS 215PCM stands out as a formidable choice for both live sound and permanent installations.
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