If the OP is talking about 70's and 80's vinyl, I use a different cartridge (or stylus if I'm in a MM mood) for my older stuff that is of less than desirable quality. It is preferable to me because I'm very happy with my preamp on good quality recordings. Room acoustics are the same for both types of LPs.
For instance if I've got my Shure V15 mounted, would use a SAS stylus for well recorded LPs in good condition; but switch to a HE stylus for those with more surface noise or too sharp on the high end. The MR seems to bring out more bass when needed. Just another approach you might be able to try.
For instance if I've got my Shure V15 mounted, would use a SAS stylus for well recorded LPs in good condition; but switch to a HE stylus for those with more surface noise or too sharp on the high end. The MR seems to bring out more bass when needed. Just another approach you might be able to try.