Photon 500

Sweet and classy.

The 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. As an homage to these legendary products, we packed this technology in a 500-series module. The 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. The PHOTON 500 has an electronically balanced input with 2520 compatible op-amp in the gain stage. The output is balanced by a Carnhill transformer.

  1. Videos
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  3. Specification
  1. 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, Carnhill transformer
    Audio transformers Yes, Carnhill
    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 0.012%
    Power
    Power consumption 2.5W
    Packing box
    Shipping weight 1kg
  2. Files
    IGS PHOTON500 user manual.pdf