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

Page 27

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.

 

 

27

Page 26 Page 28
Image 27
Page 26 Page 28
Contents Isis 215SB Important 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 For 215PCM Powered Core Module Users Preparation 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 InstallationProcessor USE General Guidelines and Preset Description General Use Guidelines for Freely-Configurable DSPFactory Presets Presets Configuring the Processors How 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
Top Page Image Contents