RB 500

Pultec style EQ in your 500 series rack.

Rubber Bands 500 is a passive equalizer absurdly reduced in size. This tiny module is equipped with transformer balancing on input and output (IGS Custom) as well as a discrete driver circuit. Of course, the entire filtering section is passive and mirrors analog equalizers from the 60s. There is a separate frequency selector for low boost/cut sections. And you get the true bypass switch as a bonus!

It is all about these bands.

RB500 Black Custom

2022 black model.
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  4. Specification
  1. Basic features
    Q factor 0.5 - 4
    Boost/Cut Range +/- 15 dB
    Hard wire bypass Yes
    All stepped manipulators Yes, Frequency selectors
    Input & Output
    Input Impedance (balanced) 1k ohm
    Output Impedance (balanced) 600 ohm, IGS Custom transformer
    Audio transformers Yes, IGS Custom
    Operating Level +4 dBu
    Max input level +20 dBu
    Max output level +22 dBu
    Noise Level -99 dBA
    Frequency response 5 Hz to 20k Hz, +/- 0.1 dB
    Distortion (@ 20 Hz - 20 kHz)
    THD+N 0.012%
    Power consumption 3.5W
    Packing box
    Shipping weight 1kg
  2. Files
    IGS RB500 user manual.pdf