QSC Audio ISIS 215PCM user manual Processor Use Configuring the Processors 3-way Mono Stack

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Processor Use: Configuring the Processors (3-way Mono Stack)

Example 2- Active 3-way Mono Stack

In a 3-way configuration, the Top Box amplifier’s two channels are used for low- and high-frequencies and the subwoofer handles bass. The Processors perform the required crossover and time delay functions.

This Top Box configuration has time delays included in the DSP chain to align the impulse response of the audio. The upper signal chain is tuned for a 100 to 1200 hertz pass band and the EQ block compensates for any driver/ cabinet resonances. The lower signal chain is tuned for 1200 hertz and higher with back-to-back high-pass filters and EQ for any required compensation.

The Subwoofer Processor would be configured similarly to the example on the previous page. Normally, the Top and Sub processors receive the full range signal and extract their respective frequency ranges.

3-way Mono Stack Checklist: There are two ways to handle the signal routing for this application. In Discrete Mode, two input cables are required, but if you have the option of controlling input signal levels of each, the overall subwoofer level can easily be adjusted on the fly. In Combination Mode, only one input cable is required since the Top Box Processor’s CH1 Input is also connected to the Subwoofer Processor (IN1 block). Any changes to input signal level will now effect both the MF/LF and subwoofer channels. Changing subwoofer gain requires Signal Manager and a computer. Bass level should be managed with EQ.

Combo Mode (preferred)

 

Discrete Mode (optional)

1- Configure Top Box Processor.

 

1- Configure Top Box Processor.

2- Configure Subwoofer Processor.

OR

2- Configure Subwoofer Processor.

3- Set Mode Switch to Combination.

 

3- Set Mode Switch to Discrete.

4- Connect the input to CH3 Input XLR.

 

4- Connect the input to CH1 Input XLR.

5- Test and adjust as required.

 

5- Connect the input to the Input 3 XLR.

 

 

6- Test and adjust as required.

 

 

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Contents Isis 215SB Integrated, Self-Powered-Self-Processed, Industrial SystemsImportant Safety Precautions Explanation of Symbols Table of Contents Composilite 215PCM Powered Control Module HighlightsINTRODUCTION- General Overview Introduction215PCM Front Technical Overview INTRODUCTION- Technical OverviewINTRODUCTION- Block Diagram Unpacking and Inspection For 215SB Subwoofer Only UsersQSC shipping box should contain Turn on the 215PCM For 215PCM Powered Core Module UsersPreparation for First USE- Amplifier Gain Controls Adjusting the Gain Settings of the AmplifiersCONNECTIONS- AC Power AC Power SwitchUse only heavy-duty 12 or 10 ga. extension cords Important points CONNECTIONS- RS-232 Processor Configuration ConnectionTo Configure a Processor 215PCM only RS-232 Connection 215PCM onlyMode Switch 215PCM only CONNECTIONS- Mode Switch and Signal RoutingCONNECTIONS- Audio Connections XLR Inputs Audio ConnectionsXLR Inputs XLR Connections CONNECTIONS- XLR Connection Recommendations and PinoutsTerminal Block Connector Pinouts CONNECTIONS- Post Processor OutputsPost Processor Outputs What is a DataPort? CONNECTIONS- DataPort QSControl users onlyDataPort Connections Output to Top Boxes CONNECTIONS- Output to Top Boxes SpeakonsCooling Air Inlet and Exhaust Vents USE- Cooling Air Inlet and Exhaust VentsLED Indicators USE- AC Power Switch and LED IndicatorsImportant User Caution USE- LED Indicators and Important User CautionSystem Requirements Software InstallationFactory Presets General Use Guidelines for Freely-Configurable DSPPresets Configuring the ProcessorsHow to Save Configurations into a Processor’s Preset Processor Use Configuring the Processors Discrete Discrete 2.1 Checklist Combo Mode preferred Discrete Mode optional Processor Use Configuring the Processors 3-way Mono Stack215PCM won’t turn on when the Power switch is operated TroubleshootingAudio time alignment isn’t right Troubleshooting Specifications- Isis 215SB Specifications- Isis 215SB Acoustic Performance Wiring of Connector 215SB Specifications Frequency RangePower Handling4 ConnectorSpecifications- Isis 215PCM Description 215PCM System SpecificationAmplifier Specifications Specifications- Isis 215PCM AmplifiersDigital Signal Processor Specifications Specifications- Isis 215PCM ProcessorsAPPENDIX- Contact Closure Wiring Details Contact Closure FeatureWiring Diagram for Contact Closure RS-232 Pinout APPENDIX- RS-232 Pinout and Pin #9 Usage NoteDisclaimer Product Warranty

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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