IG Rubber Bands

IGS Rubber Bands Equaliser

The IGS Rubber Bands Equaliser offers an all tube Pultec style equaliser.

2014

IGS Rubber Bands Equaliser Details

Many sound engineers believe that the passive equaliser is a cure for all digital evils. A distinctive characteristic of the IGS Rubber Bands Equaliser 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 IGS Rubber Bands Equaliser consists of two blocks: The first block is a classic passive filter well known from the EQP-1 Pultec equaliser. 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 equaliser has been divided into 4 sections: 2 for bass and 2 for treble. Frequencies are being selected with stepped switches.

Boosting and cutting on the IGS Rubber Bands 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.

Specifications

  • Operating Level: +4 dBu
  • Maximum Input: +18 dBu
  • Maximum Output: +22 dBu
  • EQ boost/cut range: 15 dB
  • Input impedance: 10 kOhm
  • Output Impedance: 600 Ohm
  • Frequency response: 20Hz to 20kHz; +/- 0.1dB
  • Band amplification: +/-15 dB
  • Bandwidth Range (Q): 0.4 to 5
  • Signal to Noise Ratio: dBA 81 dB
  • Crosstalk @ 20Hz – 20kHz: 80 dB
  • IMD (SMPTE) @ 20Hz – 20kHz: 0.32%
  • Dynamic Range @ 1kHz, +18dBu: 95 dBA
  • THD+N @ 20Hz – 20kHz: 0.33%
  • THD @ 20Hz – 20kHz: 0.25%

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The details provided above are drawn from historical documents like advertising brochures or user manuals. They’re shared without bias or review. This info is given solely for your consideration, helping you gauge its usefulness to you.

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