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Gurus OVA Optivalve Tube Optical Compressor

Power In 9 – 12 VDC max
Consumption (normal conditions) Max 230 mA
Max Consumption Peak at start (tube warm up) <1A
Gain reduction Up to 40db
Input Impedance <1M Ohm
Input Level 1 Vpp max
Distortion <0,28% @+24db
Output Impedance <100K Ohm
Output Level +22db / +28db peaks
Frequency Response 20Hz - 20.000Hz +/- 0,8db
Tone filter - 6db @4500Hz
Magic Eye Meter db Gain Reduction
Signal Noise ratio <80db @max limiting value
Tube type 12AU7/ECC82
Width 165mm
Length 125mm
Height 35mm
Weight 0,6Kg

Manufacturer's Description

GURUS AMPS, the Italian creators of award winning pedals like Echosex 2° and the 1959 DoubleDecker wants to continue making available to musician some of the best machines of the past, with some new added features to make it current and help musicians be more creative.

The OPTIVALVE Tube-Optical Compressor Pedal is the last word in Compressor Pedals with all the advantages of the legendary Studio Outboards that have made history in music, but more versatile and easier to use.


  • Use it in different ways as a studio outboard, or inside your pedalboard.
  • As a standard compressor pedal to reach out typical tone suitable in funky, blues, etc.
  • As a Limiter, to obtain maximum clean volume from your Amp without crunch it, or as an incredible enhancer of your TONE.
  • See thru the Magic EYE the Compression reduction level and use it with your Guitar, Bass, Keyboard, Acoustic Guitar, or as a real outboard for your mixing tracks.