The new OCL-500 has the same compression circuit as the OCl-2, but uses a transformerless class A solid-state gain makeup circuit in place of the tube stage. The result is clean, transparent compression that can be used to shape the dynamics of any source while preserving its tone. Like the OCL-2, the OCL-500 has a wide variety of time constants and dynamic control to optimize the compres- sion characteristics, including a sidechain hi-pass filter.
- OCL-2 compression profile with proprietary Pendulum opto cell
- Six time constants with fast, rms, multi-slope, and average settings
- Class A solid-state (no tubes)
- Sidechain hi-pass filter
- Single-space 500 series rack format
OCL-500 Specifications:
- Format: APIŽ 500 series standard, fully compatible
- Input Impedance: 20KΩ, balanced
- Output Impedance: less than 50Ω
- 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
| 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 |
| M2 | 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.
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