Thank you Grinnell, Crankshaft and Saki70.
Yes it is purely 2 channel music - phono, tuner and CD - that I will be playing.
If I understand correct, the PL Prologue 2 will do best through 8 ohm high efficiency speakers and do less well through less efficient or lower impedance speakers.
Speakers are presently a problem for me because I used no foresight as to what I would be driving each speaker purchase with. As a result, it is only the 8 Ohm 98 db Klipsch which sounds good with any of my amplifiers.
However, the Polks must be driven by the McIntosh 70 wpc
MA-6100 and the ADS's must be driven by the 140 wpc Accuphase E-202. Otherwise the sound like krap
I certainly am leaning toward the PL Prologue 2 now, but in the back of my mind I think I could eliminate the speaker matching problem with the Rotel.
On the other hand, I have to have a tube setup before I go on to the great beyond, so PL here I come.
Thank again gentlemen