Exar EF-1 Envelope Filter


  • Attack
    Controls the attack of the filter envelope.
  • Threshold
    Controls at which input level the effect starts responding.


the Exar brochure

The EF-1 Envelope Filter is a level dependent wah effect: the louder you play the higher the wah effect sweeps. Use the EF-1 for subtle accompanying or big and bright solos.

Most recent forum threads


  • Input Impedance
    470 kOhm
  • Output Impedance
    10 kOhm
  • Maximum gain
    0 dB
  • Dynamic Range
    95 dB
  • Filter Range
    150 Hz - 3 kHz
  • Power Voltage
    9V DC
  • Current Consumption
    6 mA
  • Dimensions
    60x110x50 mm
  • Weight
    400 g


  • ad (catalogue)
ef1 ef 1

Where to find one?

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