I currently have a pair of SB-3's and they sound great. I do however have a KSW-10 subwoofer to add more base depth. I can tell you that my impression of the SB-2's is that I would make the upgrade to the SB-3's. If you are looking at the Reference line, then I would suggest that you look very serious at the RF-3's. Dollar for dollar, my personal impression is that the RF-3 is one of the best speaker on the more affordable range. I wish I had the $$$ for major upgrades, but everything has a cost.