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All rights reserved. Printed in U.S.A. Written and produced by Donn Werrbach. Compellor ®Compellor ® S Y S T E M S 11068 Randall St., Sun Valley, CA 91352 U.S.A. F FFast astast Finder FinderFinder Contents Quick Start Introduction Installation Specications Operating Instructions System Description Warranty & Service Appendices Safety Declarations 1 2 3 4 5 6 7 8 9 CAUTION: For protection against electric shock, do not remove the cover. No user serviceable parts inside. WARNING: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the operating guide, may cause interference to radio communica tions. Operation of this equipment in a residential area is likely to cause interference in which case the user will be required to correct the interference at his own expense. The user is cautioned that changes and modications made to the equipment without approval of the manufacturer could void the user’s authority to operate this equipment. It is suggested that the user use only shielded and grounded cables to ensure compliance with FCC Rules. | Conforms to standards UL60950 and EN60950. C ® US 59887 Page 2 320A 1. Contents Compellor 2. Quick Start -Page 6 3. Introduction -Page 7 3.1 What Is A Compellor? 3.2 What Does It Do? 3.3 How Does It Work? 3.4 A BIt Of Compellor History 4. Installation -Page 10 4.1 Unpacking 4.2 Damage & Claims 4.3 Main Voltage Selection 4.4 Power Cord 4.5 Mounting In A Rack 4.6 Proper Ventilation 4.7 Panel Security 4.8 Tools & Equipment Needed 4.9 Safety Considerations 4.10 Remote Connector 4.11 Reference Level Setting 4.12 Input Connections 4.13 Output Connections 4.14 Summary 5. Specifications -Page 14 5.1 Inputs 5.2 Outputs 5.3 Audio 5.4 System Functions 5.5 Threshold 5.6 Ratio 5.7 Attack Times 5.8 Release Times Page 3 320A 1. Contents Compellor 6. Operation -Page16 6.1 Introduction 6.2 Recording 6.3 Mixing 6.4 Mastering 6.5 VIdeo Post Production 6.6 Sound Reinforcement 6.7 Live Concerts 6.8 Broadcast Radio Pre-processing 6.9 Broadcast STL/Phone Line Driver 6.10 Television Broadcasting and Cable Systems 6.11 Video and Audio Tape Duplication 6.12 Voice Processing 6.13 Hard Disk Recording 7. System Description -Page 20 7.1 Model Differences 7.2 Signal Flow 7.3 Processing Functions 7.4 Leveling Function 7.5 Compressor Function 7.6 DRC 7.7 DVG 7.8 Silence Gate 7.9 Stereo Enhance 7.10 Stereo Linking 7.11 Meter Selection 7.12 Limiter 7.13 Process Balance 7.14 Drive Control 7.15 Output Control 7.16 Process Switch 7.17 Input/Output 7.18 Operating Levels 7.19 Input/Output Metering 7.20 Gain Reduction Metering 8. Warranty & Service Information -Page 25 9. Appendices Apndx A. Balanced & Unbalanced Lines and Operating Levels -Page28 Apndx B. Dealing With Grounds and Hum -Page 29 Apndx C. Proper Wiring Techniques -Page 31 Apndx D. Standard Cable Wiring -Page 32 Apndx E. About Reference Levels -Page 36 Apndx F. Digital-vs-Analog; Peak-vs-RMS: How To Deal With The Confusion -Page 38 Page 4 Page 5 320A 2. Quick Start Compellor You can use this quick setup to get a signal through your Compellor right away. Then. you’ll want to go on and read through the manual to discover the wealth of information that is available to you. Quick Start 1. Make sure there is signal going through the Compellor with Process both “In” and “Out”. If not, check the input and output wiring. They may be reversed. Be sure to check for the correct input selection (analog or digital) on the rear panel. Leave Compellor in bypass (Process “OUT”) until finished with set up. 2.Send a zero VU tone into the Compellor (at +4dBu or -10dBV depending on your operating level settings). Check to see the rear panel REF LEVEL switches are set for your operating level. If you do not have a tone generator, use program material that averages around zero VU in your system. 3. Switch Compellor “Meter Select” to Input. The last red LED should indicate approximately ‘0’ on the meter. If not, adjust the rear panel REF LEVEL switch to the position which gives you the closest reading to ‘0’. 4. Set the Process Balance to 12 o’clock. 5. Switch the Meter Select to G.R. (gain reduction). Adjust the Drive control to achieve 12dB of gain reduction with ‘0’VU input. The last lighted LED shows the total amount of gain reduction occurring. 6. Set Leveling Speed to Slow if you are controlling full program, Fast if you are controlling live voice. 7. Set Limiter “On”. 8. Set the Silence Gate to 12 o’clock. 9. Stereo Enhance: If using the Compellor for mono or dual mono operation, switch the Stereo Enhance to “Off”. If using the Compellor for stereo program, switch the Stereo Enhance to “In”. 10. Link: If using the Compellor f...