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IGS Audio Rubber Bands 500 (RB500) is a passive equaliser, absurdly reduced in size to the 500 series format.
Pultec-style EQ in your 500 series rack.
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 analogue equalisers from the 60s. There is a separate frequency selector for low boost/cut sections.
And you get the true bypass switch as a bonus!
Not the piece of gear you’re looking for?
For more hand-made IGS Audio recording channels and signal processing, check our IGS Audio brand page here
| 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 |
| Levels | |
| Operating Level | +4 dBu |
| Max input level | +20 dBu |
| Max output level | +22 dBu |
| Noise Level | -99 dBA |
| Bandwidth | |
| Frequency response | 5 Hz to 20k Hz, +/- 0.1 dB |
| Distortion (@ 20 Hz – 20 kHz) | |
| THD+N | 0.01% |
| Power | |
| Power consumption | 3.5W |
