I like Jolida, but also have to put in a plug here for room tuning and speaker placement. You can do a lot with the speaker placement to fine tune bass, irrespective of the amp. This assumes you can change the room around. Good luck!
Tube Integrated with deep bass
As the subject states I'll like to know of any good tube integrated with deep, tight bass. To some this could sound like on oxymoron but the truth is some Vintage equipment do have deep bass. I'm looking for new equipment, no vintage.