Cave Passive Pedals
Cave Passive Pedals have souped up their original Grunt and Grunt MkII passive bass overdrive pedals with this newest incarnation, the Super Grunt. The original Grunt overdrive/boost circuit is retained, but with a flick of the toggle switch the higher boost "super" circuit comes into play.
Like all Cave pedals, no batteries or external power are required - there is a mouse on a treadmill inside the pedal case :D
The Super Grunt is also the first Cave Passive Pedal available to the general public to feature a mechanical indicator (instead of the LEDs that powered pedals usually have). Cave had previously field tested the mechanical indicator concept on custom pedals for endorsed artists to ensure it is roadworthy, and it passed with flying colours.