Unrivalled VersatilityThe key to maximizing the effectiveness of the JB3 is to understandthe basic setup. The On/Off switch (red LED) controls the Bass,Treble, Gain and Attack functions. The J-Boost (blue LED) controlsthe J-Boost Gain and J-Boost Bass and Treble. The Attack knob iscommon to both sides of the compressor. When the J-Boost isactivated, the regular Bass, Treble and Gain are inoperable.Among many variations, the J-Boost can work as a treble or bassboost, or, by adjusting the J-Boost Gain louder than the regular Gain,can create a “boost-on-boost” effect.BASS TREBLE J-BOOST BASS J-BOOST TREBLEJ-BOOSTGAINATTACKGAINJ-BOOSTON/OFF MUTEHANDMADE IN THE USAINPUTOUT 1 OUT 2BASS TREBLE J-BOOST BASS J-BOOST TREBLEJ-BOOSTGAINATTACKGAINJ-BOOSTON/OFF MUTEHANDMADE IN THE USAINPUTOUT 1 OUT 2Regular side J-Boost side

JangleBox JB3 Quick Start Manual