First, make sure the speakers are broken in first (at least 150 hours) so you know what they really sound like. Then it really depends on what improvements and sound characteristics you’re looking for, so if you can share that you’ll get much better/more useful recommendations here. Also, what’s your budget, and are you looking for new or used?
New Acquired Sopra 2
I've recently purchased a set of Sopra 2 to build a new system around. I currently have a Marantz preamp feeding into an Emotiva 2 channel amp. It is a 13 year old system and would like to know if any one could recommend a good integrated Amp with Home theater bypass as this will be used in my living area with TV and Rel subwoofer.