Here's is my review of the JMB-Experience Classic 70s. Based on the early 70s ram's head Big Muff, the Classic 70s got lots of gain, fat low end and a singing sustain. Tweaked for more mid range, this Big Muff cuts nicely through a dense band mix. I'm using a Fender Strat into a Boss RT20 and Reeves Custom 50. Delays and reverb added in Logic. See the full review on www.gilmourish.Com