A/DA Amplification FINAL-PHASE

Reissue of A/DA Final Phase Guitar Pedal


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The 2009 Reissue of the A/DA Final Phase is designed by the original designers of the late 1970s A/DA Final Phases using very similar parts and exactly the same parts in the all-analog signal path. Vintage gearheads don’t worry -- you can still dial-in the original phase shifting tone, and, by backing off the OVERDRIVE, get that original early 80's phased grind.

With this Reissue, you can get a more modern, heavier distortion by turning the OVERDRIVE knob past 12 o’clock. It gets downright scary and can boost the bottom with a 3-dimensional motion that moves your harmonics and overtones around the room.

The Reissue Final Phase touts the same features as the Original 1979 version and are functionally and sonically the same: SWEEP RATE, SWEEP MODULATION (A/DA original), versatile RANGE CONTROL to position your sweep center and high-Q filters that can be made resonant with the INTENSITY control. (Techies: the Final Phase filters have a Q of 1, as compared to the industry’s standard Q of ½. This means more coloration and depth to the sound.)


  • Sweep Modulation: A variable speed oscillator that adds to or modulates the main sweep.
  • Sweep Rate: Controls the speed at which the phase shift effect moves up and down the sound spectrum.
  • Range Control: Determines the limits off the automatic sweep functions with maximum range a the full clockwise setting.
  • Intensity: A regenerative feedback control that adds emphasis to the phasing effect.
  • Overdrive: Adds a variable amount of distortion to the input signal


  • Input impedance: 1 megohm
  • Output impedance: 300 ohms
  • Maximum input level: 6 dBm
  • Sweep rate: 12 Hz to 30 seconds
  • Modulation rate: 20 Hz to 2 seconds
  • "Q": 1
  • Control voltage range: 0 to +5 volts

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

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