DriveRack
®
4800/4820 User Manual
®
The DriveRack 4800 and 4820 offer an Insert Compression function on both the Input and Output
Inserts. This function is modeled from classic dbx Compressors such as the 160 and the 165.
Compressor On/Off switch
This switch turns the Compressor module on and off.
OverEasy fader
OverEasy is a characteristic of dbx Compressors and is essentially a “soft-knee” function that occurs at about
the compression threshold. On analog dbx Compressors, OverEasy could only be turned on or off, but in
the digital domain this parameter can have a range. This parameter can be adjusted between 0 and 10 where
0 corresponds to no OverEasy, and 10 corresponds to a very wide soft-knee region. To match the response
of the classic dbx 160, an OverEasy of 6 is recommended.
Threshold fader
The Threshold is the signal level at which the unit begins to compress the signal. If the level is set to -10
dBFS, then any signal larger than -10 dBFS is compressed, and any signal that has a level that is lower than
-10dBFS is not. For most signals the most natural sound is achieved when most of the signal content
remains just below the Threshold and only the peaks cross the Threshold. The range of the Threshold fader
is -60 to 0dBFS.
Ratio fader
The Ratio is the rate at which the signal is reduced once the threshold is crossed. A 2:1 ratio means that if
the incoming signal is 2dB over the threshold, the unit will compress the signal, and output a signal that
only goes 1dB over the threshold. Setting the Ratio at Inf:1 makes the compressor act as a limiter. The
range of the Ratio parameter is from 1:1 to Inf:1.
Gain fader
This parameter, often called make-up gain, is used to compensate for the gain lost during compression. The
range of the make up gain parameter is -20 to +20dB.
6.14 - Compressor Insert
Detailed Parameters
Section 6
55
DriveRack
®
Summary of Contents for DriveRack 4820
Page 1: ...U Us se er r M Ma an nu ua al l 4800 4820 CompleteEqualization LoudspeakerManagementSystem...
Page 6: ...DriveRack...
Page 7: ...FEATURES CUSTOMER SERVICE INFO WARRANTY INFO INTRODUCTION DriveRack Introduction...
Page 10: ...Introduction DriveRack 4800 4820 User Manual DriveRack iv...
Page 11: ...REAR PANEL FRONT PANEL SOFTWARE INSTALLATION Getting Started Section 1 DriveRack...
Page 18: ...Getting Started 8 Section 1 DriveRack DriveRack 4800 4820 User Manual...
Page 19: ...PRESETS ATTRIBUTES DriveRack Philosophy Section 2 DriveRack...
Page 21: ...NAVIGATION MODES Front Panel Operation Section 3 DriveRack...
Page 29: ...MODULEVIEW DEVICEVIEW VENUEVIEW Software Operation Section 4 DriveRack...
Page 40: ...Software Operation 30 Section 4 DriveRack DriveRack 4800 4820 User Manual...
Page 41: ...FRONT PANEL OPERATION SOFTWARE OPERATION In Use Section 5 DriveRack...
Page 48: ...In Use 38 Section 5 DriveRack DriveRack 4800 4820 User Manual...
Page 49: ...DETAILED PARAMETERS Detailed Parameters Section 6 DriveRack...
Page 73: ...UTILITIES Section 7 Utilities DriveRack...
Page 77: ...DriveRack Appendix...
Page 80: ...Appendix A 2 Block Diagram DriveRack DriveRack 4800 4820 User Manual 70...
Page 86: ...Appendix DriveRack DriveRack 4800 4820 User Manual 76 A 8 ZC 4 Wiring Diagram...
Page 95: ...Appendix DriveRack DriveRack 4800 4820 User Manual 85...