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HAO RB-3 Rust Booster III


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Simple, yet versatile with Boost and Level knobs, the Hao Rust Booster III gives you an instant signal boost with no tonal coloration. When the Boost knob is cranked, the Rust Booster produces crunch overdrive without sacrificing your guitar's original tone. Clean or dirty, the Rust Booster will surely be a "must-have" on your pedal board. Bass players will also love the Rust Booster for its ability to boost bass signals without sounding thin and muddy.

Features of the Rust Booster III that differ from those of the Rust Boost :

  • Clean Booster Area is narrower.
  • Wider distortion area for more precise setting
  • Bigger output signal volume (recommended for lower output guitars)
  • Blue LED


  • Input Impedance: Approx. 1M Ω
  • Output Impedance: Approx. 10K Ω
  • Controls: Drive, Level, DC9V Adaptor Jack (Negative Tip), True Bypass, On/Off Footswitch with Blue LED
  • Size: 113(L) x 63(W) x 35(H) mm (excluding knobs, switch, and jacks)
  • Weight: Approx. 458g (including a 9V battery)
  • Features True Bypass Switching using a 3PDT mechanical switch.