The Tone City King Of Blues V2 is inspired by a legendary ('royal') 2-channel overdrive boutique pedal from the USA. The King Of Blues combines two separate overdrive sections (Engine A / Engine B) in one effects pedal to provide excellent tonal variation and a wide range of possible sounds. Both sections can be used individually or combined and the separate controls for each section make it very easy to dial in the perfect sound for any setup. Engine A features a warm, transparent overdrive with a focused midrange, ideal for solos or 'singing' lead tones. Engine B offers a fat, smooth overdrive with less mids and a more dynamic bass range, ideal for a gentle rhythm crunch or more subtle lead tones.