This LaChappell 992eg is a great vacuum tube preamplifier purchased from Scott LaChappell in Nashville, TN. The importance of this amazing unit is that Scott and his father worked on this particular unit together and when he found out we were interested in his unit for the studio- he was so thrilled he offered to work on the pre and get it up to his personal specs and then get it over to us. We love the unit for its creative influence on tone and smooth high frequency response. It goes without saying you get a lot of control on the amount of crunch you want to add in or how clean you want this unit to run. Thanks Scott!!!