One design element that really separates this stompbox from other similar pedals at its price-point is its 2-in-1 format. This means that you have access to two overdrive flavours, providing excellent tonal variation. Channel A is a powerful and potent overdrive with plenty of mid-range, whilst Channel B has a fatter and warmer quality.
So in context, the mid-focused sound of Channel A makes it ideal for playing solos or heavy riffs with, capable of cutting through mixes. Channel B is therefore more suitable for subtle lead moments, where you don't need to be the loudest in the band but still need all of the sustain and response for a warm and musical tone.
Simple Setup
Some pedals that have two channels can be over-complicated, featuring multi-band EQ sections and more. However, the King Of Blues keeps it simple, with both channels featuring 3 dedicated knobs - gain, volume and tone.
These controls are the staples of the overdrive world, with the single tone control allowing you to introduce more top-end presence if you're plugged into a dark-sounding amplifier.