Speaker power handling

Athough the Dynaudios have some of the best drivers in the industry the Focus 140 is a midget of a speaker. I'd recommend larger speakers if you want to play loud. I'd also question your logic of having so much invested in amplification and the intention to invest relatively little in new speakers.

Those little midgets are unlikely to do anything close to realistic bass sound.

See this plot from Stereophile

You can see they have a huge hump around 80HZ and port noise/distortion in the lower midrange (red curve)

Shadorne has a point. If you want to listen at high SPLs, big speakers with large drivers are the way to go. Although the amplifier is capable of providing ample current to drive the speakers, small bookshelves usually can't play that loud and will distort easily when overdriven. You are probably getting some distortion with the Focus 140 when listening at 95db peaks(assuming a listening distance of 3m from speakers).

Not at all.

It seems to me you are having some big time fun too.

going to a 3db more sensitive speaker would be like doubling amp power.
Sticking with Focus may preserve 'house sound' you apparently like.

Snofun3,
I had a Pioneer SX727 a LONG time ago and ended up hating it. Amp? just ok, while the FM tuner wouldn't hold frequency and would 'jump' periodically.
Sure looked neat, though.