Photon 500

IGS-PHOTON500

$1,335.00

$1,335.00

LED opto-compressor – 500 Series

IGS Audio PHOTON 500 is an optical compressor, based on technology from the 60’s, first used in the early LA-2A limiters and later in the LA4.

PHOTON 500 uses an opto-coupler, which introduces negative feedback in the audio path, taking care of gain reduction, being the basics of all compression.

It has an electronically balanced input with a 2520 compatible op-amp in the gain stage.

The output is balanced by an IGS Custom made transformer.

Device type
Optical Compressor: Yes
Basic features
All stepped manipulators: Yes
Sidechain HPF: OFF, 60Hz, 120Hz
Input & Output
Input Impedance (balanced): 10k ohm
Output Impedance (balanced): 600 ohm, Custom transformer
Audio transformers: Yes, IGS Custom
Levels
Operating Level: +4 dBu
Max input level: +20 dBu
Max output level: +22 dBu
Noise Level: -99 dBA
Max. gain: 30 dB
Max Gain Reduction: 20 dB
Time constants
Ratio: 2:1, 4:1, 12:1
Bandwidth
Frequency response: 8 Hz to 20 kHz, +/- 0.1dB
Distortion (@ 20 Hz – 20 kHz)
THD+N: 0.01%
Power
Power consumption: 2.5W

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