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Table of Contents
Summary of Contents for Sirus DualCom 52
- Page 1 Manual Compressor DualCom 52...
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Page 2: Table Of Contents
Table of contents Safety instructions ..........................3 1.1. FOR SAFE AND EFFICIENT OPERATION ................3 Introduction ............................4 2.1. What compressors and limiters do ..................4 Connectors & Cables ........................5 Control / Connections ........................6 4.1. Front ............................6 4.2. -
Page 3: Safety Instructions
1. Safety instructions • Read the safety instructions and also this manual carefully. • Keep the manual. • Observe all red flags. • Observe the manual. • To prevent fire or electric shocks, protect the device against rain and humidity •... -
Page 4: Introduction
Safety Do not remove the grounding. It is for your safety. If you remove the grounding it can cause electric shocks. Hearing To avoid hearing damages, you should not operate a sound system with high levels. This applies to monitor systems, which are in the near of the ear, headphones or IEMs also. Accessory Please use only the accessory which is set by the manufacturer. -
Page 5: Connectors & Cables
Compressing A significant difference in dynamic range is achieved simply by changing the relationship between nominal signal level and threshold, as a result of either increasing the GAIN and/or decreasing the TRESHOLD control. The most interesting effect to be noted, however, is seen by comparing the original input signal with the output signal. -
Page 6: Control / Connections
4. Control / Connections 4.1. Front 1. Gain The Gain control adjusts incoming signal level to the VCA circuit. It is always active, so switching out the limiter function has no effect on this control. This control should normally be left at ‘0’... - Page 7 7. In/Out Switch This switch enables you to quickly hear the compressor/limiter in or out of the audio chain. When the switch is in the OUT position, all limiting and compression controls and functions are bypassed, with the exception of the gain and output controls, which continue to function. 8.
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Page 8: Back
4.2. Back 1. Inputs/outputs Your unit Compressor/Limiter is provided with three different connector types: ¼’’ TRS (tip- ring-sleeve) jacks, XLR connectors and Euroblocks. Inputs are 20kΩ active balanced using 1% metal film resistors, outputs are 132Ω servo-balanced. 2. Detector Loop The Compressor/Limiters have a TRS insert DETECTOR PATCH point which can be used as a ‘ducking’... -
Page 9: Typical Applications
6. Typical applications The application of this unit can be divided into two basic categories, limiting and compressing. When used as a protective device it is functioning as a limiter. It may also be used to reduce the dynamic range of a signal, creating a fuller sounding signal without increasing the loudest peaks, in which case it is functioning as a compressor. -
Page 10: De-Essing
6.3. De-Essing A special type of saturation problem often encountered in recording is the sibilant (Ssss) sound of the human voice. The solution is frequency-dependent limiting, which is easily accomplished with the unit. By inserting an equalizer into the detector patch point and boosting the equalizer at high frequencies in the vicinity if the sibilant, the limiter’s detector circuit becomes more sensitive to this particular range of frequencies, and so will limit the bothersome sibilants more than other frequencies. -
Page 11: Troubleshooting
7. Troubleshooting Situation Action No audio output Check AC power- Is the power switch on? Check input and output connections-are they reserved? Are you sure you have an input signal? Controls have no effect Is the Limiter in/out switch in? Perhaps the ratio control is set too low to produce an audible effect or the input level is below threshold. -
Page 12: Dimensions
8. Dimensions In inches: 9. Specifications Gain +/- 5dB ∞ Ratio Attack time 200s-20ms Release time 100ms-3s ∞ Output to +18dB Maximum input level +23dB Maximum output level +23dB Input impedance 20kΩ balanced Output impedance 132Ω servo-balanced Frequency response 20Hz-20kHz, +/- 0.2dB <0.1% THD, 0dBu, 1kHz Distortion <0.15% THD, + 15dBu, 20Hz-20kHz... - Page 13 Importer: B & K Braun GmbH Industriestraße 2 D-76307 Karlsbad www.bkbraun.com info@bkbraun.com 13 / 13...
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