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!
| 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 |
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