Jp1208,
Lean sounding usually has nothing to do with bass heft or extension. It is associated more with the midrange and midbass where instruments and vocals lack body and fullness. Most SS amps excel at bass, but it's the crucial midrange where music lives that tubes have it all over them. So having bass that "goes right through you", doesn't really mean anything at all in this context....
Oz
Lean sounding usually has nothing to do with bass heft or extension. It is associated more with the midrange and midbass where instruments and vocals lack body and fullness. Most SS amps excel at bass, but it's the crucial midrange where music lives that tubes have it all over them. So having bass that "goes right through you", doesn't really mean anything at all in this context....
Oz