![](https://www.musicincmag.com/images/gear/Electro-Harmonix-RamsHead_Front.jpg)
The EHX Ram’s Head Big Muff PI pedal is a faithful reproduction of the 1973 Violet Ram’s Head Big Muff heard on countless classic recordings. It now comes with a few choice updates for convenience, including true bypass switching, an LED to indicate effect status and the option of being powered by a 9-volt AC adapter.