IGS Audio Rubber Bands Stereo Tube EQ

Stereo tube Pultec style EQ - great on vocals, guitars and strings – adds fat low end and crisp high frequencies
IGS Audio Rubber Bands Stereo Tube EQ
IGS Audio Rubber Bands Stereo Tube EQ IGS Audio Rubber Bands Stereo Tube EQ
No interest if paid in full within 12 months Learn more
Special Order
Note: This item may not be returnable or could require a restocking fee. Contact one of our Audio Consultants for more details. Due to the special nature of this item, we order each unit fresh from the factory, exclusively for you! Lead times may vary so please chat, call or email for up-to-date inventory status.

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 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.

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.


  • Boost/Cut range: +/- 15 dB
  • Hard wire bypass
  • All stepped manipulators: For frequency selection
  • Q factor: 0.5 to 4
  • Input Impedance (balanced): 10k ohm
  • Output Impedance (balanced) : 600 ohm
  • Audio transformers: Carnhill, Edcor
  • Operating level: +4 dBu
  • Max input level: +18 dBu
  • Max output level: +22 dBu
  • Dynamic range: 95 dBA @ 1kHz, +18dBu
  • Frequency response: 20Hz - 20kHz; +/- 0.3dB
  • Signal to Noise ratio: 81 dBA
  • THD: 0.25% @ 20-20kHz
  • THD+N: 0.33% @ 20-20kHz
  • IMD (SMPTE): 0.32% @ 20-20kHz
  • Crosstalk: 80 dB @ 20-20kHz
  • Voltage: 115/230V AC, 50Hz - 60Hz
  • Power consumption: 34W
  • Power supply: external
  • Tube set: 4 x 6N1P

Additional Information

Condition New
Chassis 19-in Rackmount
Input Connectors Analog XLR
Output Connectors Analog XLR
EQ Type Pultec-Style
Tube Complement 6N1P-EW
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