Hi! This site was designed off of a simply idea. I saw a post in the Fender Forum, which was titled 'Taming the HRD...' it interested me cause I had a HRD and for the neighbors sake, I wanted to control that sweet sound it makes when the tubes are pushed. So I scrolled down the posts and I find that someone has created a Volume Box for the HRD that runs through the effects loop that can tame the volume. So I e-mailed the guy for the directions. Then I thought to myself: 'Couldn't this be alot easier if it was on a website?' So here it is, click on the link at the left for the volume box instructions.