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Stereo tube equalizer, classic passive filter, transformer balanced inputs and outputs

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.

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.

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.
Boost/Cut Range : +/- 15 dB
Hard wire bypass : Yes
All stepped manipulators : For frequency selection
Q factor : 0.5 to 4

Input Impedance (balanced) : 10k ohm, Carnhill transformer
Output Impedance (balanced) : 600 ohm, Edcor transformer
Audio transformers : Yes, 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 to 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, 50 - 60Hz
Power consumption : 34W
Power supply : Internal

Dimensions : 70x50x30 cm
Shipping weight : 5 kg

Tube set : 4 x 6N1P (optional: 6BC8 or 6BC7)
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