Want to introduce an equalizer with this preamp and not sure on the switch settings to make this happen. Backplane is easy, select which tape loop you want to use and EQ out to tape loop in and vice versa. For the front panel switches, if I am using CD as source and tape 1 for the EQ, I thought I would select CD for source, tape 1 switch (upper left) and then tape vs input? I haven't tried wiring this scheme yet but wanted to ask first.