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INC. TABLE OF CONTEMTS Introduction..................................................2 If You Are In A Hurry.....................................2 Mechanical Installation.................................3 Wiring............................................................3 Stereo Tie, Detector Patch, Alternatives for Sound System Installations Controls And Indicators...............................5 Gain, Ratio, Attack Time, Release Time, Output Level, Bypass Switch, Threshold/Gain Reduction Indicators Initial Setup And Checkout..........................8 Theory...........................................................9 The Need for Gain Control, Gain Riding, What Compressors and Limiters Do, Compressor/Limiter Circuitry, The Ashly VCA (Voltage Controlled Amplifier), Detectors Applications................................................19 The Compressor/Limiter as a Protective Device, Alternatives for Sound System Installations, Compression for Feedback Control, Recording, De-essing, The Compressor/Limiter as a Special Effects Device, Using the CL-Series on Stage, Voice-Over Compression (Ducking), Stereo Operation Special Notes On the CL-52E.....................27 Gain Reduction Meter Display, Output Level Meter Display, Gain Reduction In/Out Switches, Stereo Tie Switch In Case of Trouble......................................28 Glossary......................................................30 ASHLY 1 INTRODUCTION The Ashly CL-SERIES of Peak Compressor/Limiters was designed in response to the need for a universal peak-sensitive automatic gain control (AGC) device with audio performance comparable to that of a professional mixing console. It took over five years of research to realize this goal, with much of that time spent in developing a wide-bandwidth, ultra-low-distortion, low-noise VCA (voltage controlled amplifier). The resulting product is a versatile and highly listenable compressor/limiter suitable for use in professional sound reinforcement, recording and broadcasting. The Ashly CL-52E Stereo Peak Compressor/Limiter was developed to meet the need for a stereo oompressor/limiter that maintains correct stereo imaging at all times. The CL-100 is the half-rack version of the CL-50E. The greater part of the text and illustrations in this manual therefore refers to the CL-50E. Special features of the CL-52E are explained separately. We ask that you please read this instruction manual thoroughly before operation so that you may realize all the features and benefits that the Ashly Compressor/ Limiter has to offer. □ IF YOU ARE IN A HURRY We will assume that you are familiar with compressor/limiters in general. Please keep the following points in mind: 1. For safety, your CL-50E or CL-52E should be connected to a standard ground AC outlet supplying 120 volts, 60Hz. The CL-100 uses standard remote RAPS power pack. This should also be connected to a grounded 120 volt, 60Hz outlet. 2. The inputs and outputs of Ashly compressor I limiters can be used as either balanced or unbalanced depending on the connector. For unbalanced connections, use a standard mono phone plug. For balanced connections, use a stereo phone plug with the (+) signal on the tip, the (-) signal on the ring, and the ground on the sleeve. 3. For a good starting point, set the input and output levels at “0” and the ratio, attack, and release controls at mid-rotation. Apply signal and adjust from there to suit your application. 2 ASHLY 4. If you have problems, please refer to the more detailed sections and to the troubleshooting guide in this manual. □ MECHANICAL INSTALLATION The CL-50E and CL-52E Compressor/Limiters mount in a standard 19 inch equipment rack The mounting screw threads vary with different rack manufacturers and you should refer to your rack instructions for proper hardware. An oval head or flat head screw with a plastic countersink washer is preferred to protect the finish of the compressor/limiter under the screw. The CL-100 is housed in an industry standard half-rack enclosure which provides a variety of mounting options. It can be used free-standing, in a halfrack-sized enclosure, mounted in a vertical 19 inch adaptor with up to eight other half-rack products, or side by side with another half-rack product in a standard 19-inch rack. Mounting accessories are available from Ashly to accomplish this. Your Ashly compressor/limiter is housed in a rugged steel case and will tolerate moderate abuse. However, for road systems which may be dropped or otherwise subjected to extreme forces, we recommend some rear support for the chassis to prevent bending the front panel when these forces occur. □ WIRING The CL-50E and CL-52E Compressor/limiter should be connected to a 3-wire grounded outlet supplying 120 Volts, 50-60 Hz. Power consumption is 12 watts. The CL-100 uses a standard RAP-6 remote AC power supply. The INPUT is a 10k ohm active balanced type on a standard stereo phone plug that will accept leve...
Questo manuale è adatto anche per i modelli :attrezzature di pompaggio - LIMITER/COMPRESSORS CL-100 (4.25 mb)
attrezzature di pompaggio - LIMITER/COMPRESSORS CL52E (4.25 mb)