FX69B Grunge

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FX69B Grunge pedals from late 1997 (left) and VFX-series

DOD introduced the FX69B Grunge in 1998, replacing the FX69 in DOD's lineup. While the circuit was updated for the final chassis design, and the name "Grunge" was trademarked, there was little difference between the two versions (and early ad copy simply referred to the new pedal as the "FX69", without the "B" designation). The vast majority of FX69B Grunge pedals were made in China as part of the "VFX" series, but at least the very first production run was made in the U.S.A.

• Controls: Loud (level), Low (low eq), High (hi eq), Grunge (distortion)
  
  
• From the manual: "The FX69B Grunge is a hypercharged high-gain preamp so nasty and so heavy, it'll have your bandmates screaming for mercy. Even its distortion is distorted. ... This is the kind of high-gain distortion that allows notes to sustain into infinity, simulating the distortion of a guitar amplifier turned up to eleven - wait... no twelve ! , clipping the signal and causing distortion. One of the advantages of using a pedal-type distortion like the FX69B is that big, heavy distortion can be produced at any amplifier volume or setting."
  
  
• Technical info:
  
  
  • Notable IC chips: three 4560D op-amps
    
    
  • Component-side circuitboard images: December 1997 VFX series (made in 2002?)
    
    
  • Related circuits: FX66 FX70P GFX70
  
  
• FX heritage: FX69 FX69B


• External links:


• DOD FX69B Grunge Schematic


• DOD FX69B Grunge on Effects Database


• DOD FX69B Grunge reviews on vintage Harmony Central


• DOD FX69B Grunge on Noise Guide


• DOD FX69B Grunge on Ultimate Guitar



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