Opto Compressor

- Pure Class A, 100% discrete design
- Forward musical detail and sonic excellence
- Minimum audio signal path
- High quality transformer input & isolated output
- Microphone and Hi-Z inputs to +36dB
- Very low noise -100dB
- High headroom +30dB
- Switched 2dB, high-gain preamplifer to +66dB
- DC coupled Pure Class A output
- Large illuminated professional VU meter

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MICROCLOCK MK3 XB Clock

-Mic Preamp Connector: XLR Floating balanced, Pin 2 Hot
-Mic Preamp Input Impedance: ~4.2kO
-Mic Preamp gain: 0dB to +60dB
-Mic Preamp Phantom Power: +48VDC, applied to XLR pins 2 and 3 through 6.81kO resistors
-CMRR: >40dB, typically 55dB
-Mic Preamp max input level: 0.2Vrms, Gain = 30dB
-Mic Preamp Equivalent Input Noise (EIN): -125dBu, 22Hz-22kHz, 150O source impedance

- Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for lo gain ribbon mics. Input is Carnhill transformer balanced and floating.
- Line input impedance: 10K Ohms bridging, Carnhill transformer balanced and floating.
- DI input impedance: Greater than 2 Megohms, unbalanced.

- Maximum input level: Over +22 dBu.
- Maximum output level: Over +26.5 dBu into 600 ohms.
- Self-Noise: Less than -75dBu 20Hz-20Khz. -80dBu A-weighted.
- THD+N (50Hz- 20Khz): not engaged, less than 0.07% at +20dBu.
- Frequency response, COMPRESS and LIMIT OUT, +- 0.5dB, 15Hz- 30Khz.
- Input impedance: 10Kohms, transformer balanced and floating.

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