Amptweaker BigRock Pro

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(3 customer reviews)

When Amptweaker released the iconic TightMetal Pro distortion pedal in 2013, it has garnered several requests for a two button Rock distortion. Boasting Smooth and Fat switches, the BigRock Pro can get every familiar tone from FatRock and TightRock pedals. What makes the BigRock Pro stand out among many distortion pedals with boost is its two Boost knobs, one after and one before the distortion, making it convenient to boost the volume and gain for a majestic solo tone.

Brand: Amptweaker

Color: Brown


  • Dual Lit Boost controls via Boost footswitch

Details: After introducing the popular TightMetal Pro distortion pedal in 2013, Amptweaker immediately received many requests for a two button Rock distortion. With its included Fat and Smooth switches, the BigRock Pro can get all the familiar tones from our popular TightRock and FatRock pedals, and many more. Unlike most distortion pedals with boost, the BigRock Pro includes 2 Boost knobs, one before and one after the distortion…..so its easy to boost the gain AND volume, for the perfect solo tone. Theres also a Midboost button that works with the output Boost knob, to help solos cut through the mix. Developed while designing the FatRock ‘tweaked’ version of the TightRock, the BigRock Pro has a Smooth Edge switch which cuts the high end sizzle for a warmer edge, and 2 Fat switches for either the normal or Boosted tones to have a thicker attack with a bit more compression, like the FatRock pedal. There’s also a High Gain switch to select between Vintage sounding blues rock or heavier modern rock gain. The added three band EQ allows for much tonal variation, with its PlexEQ button for more traditional stack tone. Our standard noise gate from the original TightRock is also included, with 2 separate internal adjustments to help tweak the feel of the gate. Amptweaker pedals are known for effects loops, and this one has 3: a universal loop, another active with the boost, and our popular SideTrak loop which activates when the pedal is OFF, to automatically shut off clean effects.

UPC: 700355950455

EAN: 700355950455

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Based on 3 reviews

4.3 overall

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  1. Amy

    Fantastic pedal. It sounds real good, has a nice bottom end, and tons of gain! BigRock Pro has easily become one of my favorite stompboxes.


  2. Monin

    Excellent tones, but the construction is poor. The knobs aren’t installed correctly, making them difficult to use.


  3. Maverick

    Sounds fantastic and offers countless ways to sculpt your tone.