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Crane Song Insigna 500 Series Tube Equalizer

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Crane Song 500 Series Module

Crane Song's Insigna is a tube equalizer in a 500 series package, using a dual triode circuit with a 12AX7 tube. It has 3 bands and filters. The eq has 24 db/oct high pass and low pass filters each with 7 frequencies. The top and bottom band are shelving each with 8 frequencies. The mid band is peaking with 8 frequencies. The three bands work by using buffered RC circuits in the negative feedback path around the tube amplifiers. The result is a fat sounding eq rich in second harmonic triode tube color.

Crane Song Insigna 500 Series EQ Module Features:
  • 3-band tube equalizer in the convenient 500 Series format
  • Uses dual-triode circuit with a 12AX7 tube
  • 24dB/oct high- and lowpass filters (each with seven frequencies)
  • Top and bottom bands are shelving, each with eight frequencies
  • The mid band, also with eight frequencies, is peaking
Crane Song Insigna 500 Series Tube Equalizer Specs:
Number of Channels 1
Number of Bands 3-band
Tube Yes
High Pass Filter Yes
Low Pass Filter Yes
Boost/Cut Range ±12dB
Freq Range High 3.2kHz-20kHz
Freq Range Mid 150Hz-7.2kHz
Freq Range Low 10Hz-200Hz

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See Also: Crane Song , Crane Song 500 Series EQ

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