With $2K to spend, I would round out the Axioms and get that HSU sub, then look at upgrading your receiver with the money left over. If your current receiver has preouts, then you could also get an amp and use the Sony as a pre-amp until you have extra money to buy a dedicated one. However, now is the time for last year models with numerous brands, as they are discounted greatly. I got my HK 525 refurb from HK for $500 shipped and have loved it since getting it.