It's hard not to adjust the bass to your own liking but you should tune your bass for a natural sound. Some recordings will have more or less bass than others. Back in the day we set our rigs up and just let it play.
Subwoofer adjustment for each recording
I have dual REL subwoofers using high level speaker out connections as recommended by REL. I have KEF LS50 meta speakers. I am happy with my subwoofer crossover and volume settings most of the time. However, with some recordings the bass seems too strong. Should I adjust the bass at the subwoofer? Should I adjust the bass with my preamp? Should I just listen to the music as is, since this is what the producer, engineer, or musician wanted. Thanks.