Jer, the 100 ohm ers were going on the Tl-072 board. it has been decided thats where the gain problem originates. we are bypassing the whole board. Input coupling caps are C1,2, 16, 17 on the amp board. We will upgrade those with <http://www.mouser.com/ProductDetail/Xicon/1429-1474/?qs=sGAEpiMZZMvCt%252bwg%252braTugJwlx7%2fZmI%2ffq8QOee60ww%3d>
PS, if you don't want to install new rca's go from + pad on c49 on the opamp board to the R1 pad on the amp board from the + on the c52 pad on the opamp board to R5 on the amp board.