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General| Type | Compressor/Limiter |
|---|---|
| Manufacturer | Neve |
| Model | 2254/R |
| Output Impedance | 600 Ohms |
| Controls | Threshold, Ratio, Attack, Release |
| Dynamic Range | >100dB |
| Input Impedance | 10k Ohms |
| Frequency Response | 20Hz - 20kHz ±0.5dB |
Essential guidelines for safe operation, maintenance, and environmental considerations.
Explains the unit's dual sidechain design for limiting and compression, and time constants.
Details how settings can be stored and recalled using dedicated software via USB.
Describes the Neve logo switch for powering the unit on/off and its indicator light.
Explains the 'In' button function for routing signal through the unit or bypassing it.
Details how to link multiple 2254/R units for stereo processing via the 9-pin link sockets.
Activates the Limiter sidechain, controlling the absolute maximum program level.
Allows adjustment of the limiting threshold in 2dB steps from +4dBu to +20dBu.
Provides selectable recovery times (100ms, 200ms, 800ms, Auto) for the limiter.
Engages a faster attack time (5mS) to prevent unwanted effects on percussive signals.
Allows setting the attack time from 100µS to 2mS when 'Fast Attack' is engaged.
Activates the Compressor sidechain for dynamic range control.
Offers five selectable compression ratios (1.5:1 to 6:1) for shaping the compression characteristic.
Sets the compression threshold in 2dB steps from -20dBu to +10dBu.
Provides up to 20dB of gain adjustment in 2dB steps to restore program level.
Offers selectable recovery times (100ms, 200ms, 800ms, Auto) for the compressor.
Details the programme meter's function, LEDs, and selectable display modes (Input, Output, Control).
Describes the XLR connector for balanced line input and its pinout.
Details the XLR connector for balanced line output and its pinout.
Explains the trim pot for setting overall unit gain to 0dB in/out for impedance matching.
Explains linking sidechains of multiple units for stereo operation, ensuring image stability.
Specifies the 36v DC power requirement and the 12A LBC fuse.
Describes the Type B USB connector for PC/Mac connection to store/recall settings.
Explains the two grounding options for the unit's chassis via a switch and connection.
Step-by-step guide for installing the Neve Recall software on a Windows PC.
Instructions for installing the Neve Recall software on a Mac OS X system.
Steps to start the firmware upgrade via the Recall software.
Guide on locating and selecting the correct firmware data file (.hex) for the unit.
Process of file transfer, expected duration, and confirmation of successful update.
Information on dealing with transfer failures, corrupted, or old firmware versions.
Details power, input/output impedance, gain, noise, and frequency response.
Lists Ratio, Level, Attack Time, and Recovery Time parameters for the limiter.
Details Ratio, Threshold, Attack Time, Recovery Time, and Gain Make Up.
Describes meter function, selectable modes, and signal level indication.
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