Yeah........a loudness button.....Yamaha had a unique "continuously variable loudness compensation" on their old Pre-Amps (I have the CX-2, a great Pre Amp I am using just as a Phono Pre Amp now with my new 950/755 combo)...best loudness type control I have ever used.......It would work just fine on an Outlaw Pre Amp......
just for us old timers........
Outlaw would understand that!!!