IGS / Products / Equalizers / Rubber Bands

Rubber Bands

Have you ever dreamt about your own Pultec style EQ?

Great, here's your stereo unit

Many sound engineers believe that the passive equalizer is a cure for all digital evils. A distinctive characteristic of the IGS Audio Rubber Bands Equalizer is its stereophonic structure, where the manual selecting of components with an accuracy of 1% allows for perfectly synchronous manipulation of both channels. The inputs and outputs are transformer balanced.

The TUBECORE adds density and dimension to your mix in a magical way

Organic Amp

The Rubber Bands EQ consists of two blocks: The first block is a classic passive filter well known from the EQP-1 Pultec equalizer. The second block is a specially designed two-stage tube amplifier called Organic Amp.

Simultaneous cuts and boosts of similar frequencies give a professional feel

Sound shape

The new design includes a bypass relay, which allows you to instantly compare the results of your work. The equalizer has been divided into 4 sections: 2 for bass and 2 for treble. Frequencies are being selected with stepped switches. Boosting and cutting are controlled continuously. Manipulators featured are Bass Boost, Bass Cut, High Boost (with the choice of Q) and High Cut. Interactions of filters that allow simultaneous boosting and cutting of certain frequencies can produce amazing sound effects.

Very good on vocals, guitars and strings – adds fat low end and crispy high frequencies
  • Basic features
    • All stepped manipulatorsFor frequency selection
    • Boost/Cut Range+/- 15 dB
    • Hard wire bypassYes
    • Q factor0.5 to 4
  • Input & Output
    • Audio transformersYes, Carnhill, Edcor
    • Input Impedance (balanced)10k ohm, Carnhill transformer
    • Output Impedance (balanced)600 ohm, Edcor transformer
  • Levels
    • Operating Level+4 dBu
    • Max input level+18 dBu
    • Max output level+22 dBu
    • Dynamic Range95 dBA @ 1kHz, +18dBu
  • Bandwidth
    • Frequency response20Hz to 20kHz; +/- 0.3dB
  • Distortion (@ 20 Hz - 20 kHz)
    • Signal to Noise Ratio81 dBA
    • THD0.25% @ 20-20kHz
    • THD+N0.33% @ 20-20kHz
    • IMD (SMPTE)0.32% @ 20-20kHz
    • Crosstalk80 dB @ 20-20kHz
  • Power
    • Voltage115/230V AC, 50 - 60Hz
    • Power consumption34W
    • Power supplyInternal
  • Packing box
    • Dimensions70x50x30 cm
    • Shipping weight5 kg
  • Others
    • Tube set4 x 6N1P (optional: 6BC8 or 6BC7)