I was planning on getting either the upcoming Emotiva 2 channel amp(with the meters) or buying a used Parasound HCA3500. Do You guys think these would be good choices ?
Thanks guys 
Jack I am using a HCA3500 with the LS-9's. I use a Mini-Max pre, so warmth is not a problem. I have used all tube and all solid state systems and combinations of both on and off for 35 years. I like tubes a lot, but in recent years I have gone toward tube pre's with solid state bottom ends as what I feel is a best compromise of cost and performance.
Also my experience has been that at lower price points, tube amps do not generally do as well at controlling bass as do similar priced solid state amps.
Those tube amps I have listened to that do bass very well tend to get very expensive.
Given what these can do in the bass area, I feel it would be limiting their potential to use a lower priced tube amp; that is if you're looking in the HCA3500 price range for one.
Also, a plus with the HCA 3500 in addition to the bass control is the total lack of any dynamic limitations even when driving the LS-9's at near symphonic levels.
However, if you had a few more $$ to spend, I would go with a McCormack DNA 225 or 500 personally which are warmer sounding amps all on their own.
All of this is of course IMHO.