Amptweaker BigRock Pro Manual

Rock overdrive/distortion

Welcome! Thanks for purchasing the BigRock Pro™

pedal, another Amptweaker™

pedal, the ﬁrst Amptweaker™ handmade product

designed with

designed with your advice. This version of our very

popular TightRock™ & FatRock pedals has a dual

boost system, 3 effects loops, & added 3 band

EQ...which helps get even heavier tones not

available with the standard versions.

ideas coming!

Cool Ideas:

• Dual illuminated Boost controls via Boost footswitch

• 3 band EQ, with Smooth Edge and PlexEQ switches

• 3 effects loops, Universal, Boost, and SideTrak loop

that works when the pedal is OFF!

• Noise gate with internal adjustments, tracks gain

• Mid Boost switch tweaks Boosted tone to cut through

• Internal Fat switches for warmer Rhythm and/or Boost

• Pre/Post select switches for Universal and Boost Loops

• Can be used as a preamp, or into clean channel

• Runs on 9V-18V, like changing from 50 to 100W amp!

• LED lit knobs when using an adapter

good tone comes from tweaking ...

Keep the

James Brown,

Amp Engineer

Table of Contents

Page 1 ... Welcome! Thanks for purchasing the BigRock Pro™ Welcome! Thanks for purchasing the BigRock Pro™ pedal, another Amptweaker™ pedal, the ﬁrst Amptweaker™ handmade product designed with designed with your advice. This version of our very popular TightRock™...
Page 2 How does the work? Gain- adjusts distortion, PlexEQ & Smooth Sw–PlexEQ tweaks mids switch sets gain, ON for & edge for stack tones, Smooth warms highs modern, OFF for vintage Volume- 3 Band Gate–cuts Tight– set high for Master Boost– EQ–...
Page 3 • Adapter: 9-18VDC adapter w/5.5mm X 2.1mm positive barrel center ground(-) • Housing: 14 Gauge galvanized steel • Weight: 3 pounds, Dimensions: 5.625”W X 5”D X 2.125”H ©2014 Amptweaker, LLC, 3482 Keith Bridge Rd, Box 345 Cumming, GA 30041 handmade in USA...
Page 4 SideTrak™ DELAY NORMAL: BRP has EQ always, adds Delay when Boost ON, Chorus only when bypassed. DUAL AMPS: Take Chorus OUT to 2nd CHORUS ʻCleanʼ amp CLEAN FX IN ST: instead of RET Clean pedal or CLEAN of SideTrak, for preamp, only works dual amp A/B when BRP is OFF...