Pendulum Audio OCL-500
Class-A Electro-Optical Transformerless Compressor / Limiter, for the 500-Series Rack
Brace Yourself for the Highly Anticipated Pendulum Audio OCL-500 - Based on the Classic OCL-2!
Since its introduction in 1998, the Pendulum OCL-2 Compressor/Limiter has become a modern classic. In fact, the OCL-2 changed the way users think about opto compression! Our custom opto cell provides fast, invisible compression without the artifacts and sluggish response inherent in vintage designs.
Pendulum Audio OCL-500 Features :
- OCL-2 compression profile with proprietary opto cell
- Six time constants with fast, RMS, multi-slope and average
- Class A solid-state (no tubes)
- Sidechain hi-pass filter
- Single-space 500 series rack format
The OCL-500 features the same compression circuit as its predecessor from yester-decade, but a transformerless, class A, solid-state gain makeup circuit replaces the tube stage from the OC-2.
The result is clean, transparent compression that can be used to shape the dynamics of any source while preserving its tone.
Also, drawing off the OCL-2, the OCL-500 has a wide variety of time constants and dynamic control to optimize the compression characteristics, including a sidechain hi-pass filter.
Format : API® 500 series standard, fully compatible
Input Impedance : 20K, Balanced
Output Impedance : Less than 50!
Max. Output Level : +27dBu, balanced
Threshold : Off to 20dB of gain reduction at +4dBu
Ratio : 1.5:1 to 15: 1, soft knee
Output : Off to +20dB of makeup gain
Max. Gain Reduction : 27 dB
Frequency Response : +/- 1 dB from 10Hz to 95kHz
Noise Level : Better than 78dB below +4dBu, 0-30kHz
Total Harmonic Distortion : Less than 0.01% with no compression
Time Constants :
Position Type Description
F Fast Peak-averaged by the opto-cell
A Average RMS response
V1 Vintage 1 Three-stage multi-slope (auto)
V2 Vintage 2 Slower three-stage multi-slope (auto)
M1 Manual 1 Medium attack, medium release
M1 Manual 2 Slower attack, slower release
Average and Vintage 1 are the presets in the Quartet.
Vintage 2 is the Vintage preset in the Quartet II.
M1 and M2 are manual attack and release settings often used in the OCL-2