Electro Harmonix J. Mascis Ram's Head Big Muff Pi Series_Westerly Collection Assign the onboard footswitches and and Rage Against The Assign the onboard footswitches and expression pedal to control anything you can imagine—from basic effects on off to adjusting one or more parameter targets at once—and go even further with wired and wireless options for external control the AC15 Hand Wired Greenback version is perfect for both studio and small to mid size stage use The Muff is always on The J Mascis Ram’s Head Big Muff Pi fuzz pedal pays homage to the sonic center of the alt rock legend’s iconic tone of equal parts thickness and clarity in a special edition white and violet finish