Naim 62/90 versus 112/150

What kind of a difference are we talking about between the pairings of the 62/90 olive vs. the newer 112/150? And, what will an olive hi-cap do for the 62/90? I am using a rotel CD1070 with late 70's ADS L810's. I would appreciate any comments. Thanks, Craig
the 150 has more power, grip and control. the 62/90 may be a bit sweeter.
a bit more bass
Thanks for the input.