The Lumberjack from Electro-Harmonix is a log overdriver designed for the electric guitar player. The distortion character of the Lumberjack changes depending on your playing dynamics, ranging from a clean boost, to subtle torn-speaker overdrive, to gritty distortion. The unit is housed in a durable, compact, rugged die-cast chassis, and includes true-bypass switching to keep your bypassed tone intact. The Lumberjack comes with a 9.6 VDC 100 mA power supply and is compatible with Boss/Ibanez style AC adapters.
The Boost knob controls the volume of your input signal and can be used to boost a quiet guitar to achieve more distortion; when set to higher settings, it allows your natural guitar tone to blend with the overdriven signal. The Log Factor knob controls the amount of logarithmic distortion created by the Lumberjack, and the Volume knob sets the output level of the unit. The Footswitch selects whether the Lumberjack is engaged or in true bypass mode; when the effect is engaged, the LED is lit.