more punch/presence from Meadowlark Shearwaters

would like suggestions for getting more low midrange presence from my Shearwater Hot Rods. powered by Rogue 88 non Magnum(KT88)/Rogue 99 and CAL 10 CD, DH Labs cables Q10s. Very smooth speakers but I'm missing some presence in the lower midrange(cello, piano doesn't resonate like I'd like) and some more "punch"(feeling some air move). My thoughts are to try the Rogue M120 monoblocks. Also heard the Hovland Sapphire on other speakers recently and was pretty impressed. Any amp, CD or cable change suggestions ? Thanks for your ideas.