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ST-CL2 Compressor/Limiter - Line Level

ST-CL2 Compressor/Limiter - Line Level

Radio Design Labs - Compressor/Limiter - Line Level



  • Positive Audio Level Protection
  • Smooth Inaudible Gain Reduction
  • Tight Audio Peak Control
  • Very Low Noise Compressor
  • Multi Stage Incremental Gain Reduction
  • Fully Automatic Operation
  • Superb Performance with Minimal Setup
  • RDL® SupplyFlex™ Power Input Configuration

The ST‑CL2 is a high performance compressor/limiter designed to maintain a constant average output level and effective peak control over a wide range of input levels. The input and output are line level and each may be wired balanced or unbalanced. Trimmers provide adjustment for all usual professional and consumer audio input and output levels. Internal detectors feed three timing circuits. The threshold level and slope of each timing circuit are incremented to respond sequentially to signals of varying amplitude and energy levels. The ST‑CL2 features a soft‑knee compression threshold and compression ratio which automatically adjust to the program material. Two LED indicators cover the incremental ranges of compression, making setting of the input level quick and easy. Two ST‑CL2s may be strapped together for stereo operation by connecting the coupling terminals between the two modules.

Radio Design Labs - dcf100mb

Typical Performance:

Input:

10 kΩ Balanced (may be connected unbalanced)

Input Signal Range:

‑10 to +4 dBu, adjustable (for 6 dB gain reduction); +22 dBu maximum

Output:

150 Ω Balanced (may be connected unbalanced)

Output Signal Range:

OFF to +8 dBu, adjustable

Frequency Response:

10 Hz to 20 kHz (+/‑ 0.2 dB) over full compression range

Noise below +4 dBu output:

< ‑78 dB (unweighted; +4 dBu input/output)

Total Harmonic Distortion:

< 0.05% @ 1 kHz below compression threshold;
< 0.1% @ 1 kHz with 3 dB gain reduction;
< 0.15% @ 1 kHz with 6 dB gain reduction

CMRR:

> 60dB (50 to 100 Hz)

Attack Time:

Averaging Compressor: 500 ms (+4 dBu input);
Fast Compression: <10 ms (+20 dBu input);
Peak Limiting: Instantaneous

Release Time:

Automatically adjusting up to 500 ms

Compression Ratio:

Automatically adjusting 1.5:1 to 10: 1

Peak Limiter:

INF:1

Interconnection:

Stereo COUPLE interconnection provided

Indicators (2):

Yellow LED for NORMAL Compression,
Red LED for HEAVY Compression

Power Requirement:

24 to 33 Vdc @ 50 mA, SupplyFlex

Ambient Operating Environment:

0° C to 55° C


Positive Audio Level Protection, Smooth Inaudible Gain Reduction, Tight Audio Peak Control, Very Low Noise Compressor, Multi Stage Incremental Gain Reduction, Fully Automatic Operation, Superb Performance with Minimal Setup, RDL® SupplyFlex Power Input Configuration, The ST-CL2 high performance compressor/limiter designed to maintain constant average output level effective peak control over wide range of input levels input output line level wired balanced unbalanced Trimmers provide adjustment usual professional consumer audio input output levels Internal detectors feed three timing circuits threshold level slope of timing circuit incremented to respond sequentially to signals of varying amplitude energy levels ST-CL2 features soft-knee compression threshold compression ratio which automatically adjust to program material Two LED indicators cover incremental ranges of compression, making setting of input level quick easy Two ST-CL2s strapped together stereo operation connecting coupling terminals between two modules, format converter Data/Installation

Mounting Accessories:

Mounting Kit - RU, ST and TX SeriesMB-1
Mounting Kit - RU, ST and TX Series

Kit to Mount ST, TX Series Modules on FP PanelMB-3
Kit to Mount ST, TX Series Modules on FP Panel

Snap Rail Adapter - STICK-ON SeriesMSR-1
Snap Rail Adapter - STICK-ON Series

19" Universal Rack Chassis - RU, ST and TX SeriesRC-1U
19" Universal Rack Chassis - RU, ST and TX Series

19" Rack Mount for 3 RACK-UP Series ProductsRU-RA3A
19" Rack Mount for 3 RACK-UP Series Products

STICK-ON Mounting PlateSMK-12
STICK-ON Mounting Plate

STICK-ON Series 19" Mounting Rack - 10 modulesSR-10
STICK-ON Series 19" Mounting Rack - 10 modules

STICK-ON Series 19" Mounting Rack - 12 modulesSR-12A
STICK-ON Series 19" Mounting Rack - 12 modules

STICK-ON Series Mounting Rack - 7 modulesSR-4
STICK-ON Series Mounting Rack - 7 modules

STICK-ON Series 19" Racking System - 12 modulesSTR-19A
STICK-ON Series 19" Racking System - 12 modules

STICK-ON Series 19" Racking System - 10 modulesSTR-19B
STICK-ON Series 19" Racking System - 10 modules

Single Wide Enclosure - RACK-UP MountsUC-1
Single Wide Enclosure - RACK-UP Mounts

Double Wide Enclosure - RACK-UP MountsUC-2
Double Wide Enclosure - RACK-UP Mounts

Table Top Chassis for RU, ST and TX SeriesWDG1
Table Top Chassis for RU, ST and TX Series

Pole Mount TrayPM-1T
Pole Mount Tray

STICK-ON DIN Rail Adapter - 1 moduleDRA-35S
STICK-ON DIN Rail Adapter - 1 module

STICK-ON DIN Rail Adapter - 6 modulesDRA-35S6
STICK-ON DIN Rail Adapter - 6 modules

Rear rack rail mounting kit for any STICK-ON moduleST-RRB1
Rear rack rail mounting kit for any STICK-ON module

General Accessories:

STICK-ON® Series Detachable Terminal BlockDTB
STICK-ON® Series Detachable Terminal Block

Accessory Mounting SystemAMS
Accessory Mounting System

Related Products:

ST-GCA3
Gain Control Amplifier - Line Level

FP-ALC1
Automatic Level Control - Mono - Terminal block

FP-ALC2
Automatic Level Control - Stereo - RCA Jacks

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Copyright © 2010 Radio Design Labs, Inc. RDL, Radio Design Labs, the RDL logo, STICK-ON, RACK-UP and the Rack-Up logo are registered trademarks of Radio Design Labs, Inc. Flat-Pak, RCX, SourceFlex, SupplyFlex, Sure-Lok, TX, ULTRASTYLE, and Specialists in Practical Precision Engineering are trademarks of Radio Design Labs, Inc. All other trademarks are the property of their respective owners. Typical Performance reflects product at publication time exclusive of EMC data, if any, supplied with product. Date last modified: June 29 2010

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