i just bought a Rowland 112 used to power the bottom end of my soon to arrive Kharma Exquisite 1ds in a bi-amp setup. the Kharma is a true 8 ohm speaker even in the bass. everything i have heard and read has mentioned the perception of control and power in the bass of the 112.
i haven't listened to it yet so i can't comment if it will fulfill my expectations. as i recall the 803s go to about 35hz in the low bass but are 4 ohm speakers. that load should be fine for the 112.
there is a a review on Soundstage;
by Todd Warnke that states the 112 has "full, deep, and articulate bass".
e-mail me in a week and i'll give you my listening impressions.