Which component upgrade will produce more BASS?

Speakers closer to the wall or speakers moved to an adjacent wall, and then moved around untill you find the best bass... Dance with them while they're playing bass-heavy material and set them down where you hear the most bass. I think it's a room problem... not an equipment problem. You need to optimize their placement in the room, though in some rooms it may be a futile exercise. Maybe removing some of the room treatments -- or shifting them around...?

If your favourite music is rock from the 70s-80s, I would go for a JBL. A used JBL 250 TI for example. That would produce the type of sound you may like and fit for this type of music. But I would, anyway, buy a speaker with 10" woofer.

Cabling and/or cartridge is not your issue. Nor are the electronics.

Audes Blue are not a paint peeling rock and roll speaker.

If you're committed to them, work on the room and speaker placement.

If not, change speakers.