I think this one would work extremely well unless I’m missing your requirements somehow. I have the integrated version and I love it. Perhaps your "bass management" is what has me confused, but you can run your subs off of this even in HT bypass if that's what you mean. If you're looking for internal filtering for bass output (i.e. For passsive subs or bi-amping) or internal EQ, then no, this isn't it.
http://www.primaluna-usa.com/dialogue-premium-preamplifier
http://www.primaluna-usa.com/dialogue-premium-preamplifier