Amp for Sopra 2

I recently purchased Sopra 2's and I already had an Emotiva XPA-5 amp and and Anthem AVM-60.  I moved my B&W 805D3's to the rear and am using a Focal Aria center due to space limitations.  I am a live music fan so most of my music listening is Blu-ray concerts and streaming, and of course movies as well.

I am considering upgrading to a new multi-channel amp and would like to keep the budget under $5000.  My main questions is should I expect to hear a significant improvement over the XPA to make it worth the expense.  Assuming the answer is yes, I am open to all recommendations as I have not yet started shopping.

Thanks.