I had a similar experience. I had got used to lightweight, class D neo- gear and then found myself using a Trace 4x10 combo in rehearsal.
It belonged to the studio so never had to be moved, and it sounded out of this world. Night and day difference to what I had become accustomed to. Really was an ‘awesome’ sound.
It’s like cinema audio… if you don’t have to worry about moving it, amplifying bass is very different !