Wren and Cuff pedals are anything but subtle, earning high marks from the likes of Weezer and Dinosuar Jr. The Wren and Cuff Box of War is quickly becoming a popular replica of the Big Muff circuit used by David Gilmour and Thurston Moore, and the Caprid Distortion is a strong 1970s-era Ram's Head interpretation. Matt Holl's designs have bold names and bold sounds.