Hi,
you have a system with potential, that from your description is not breathing at the moment, so try first some better cables, both power and signal and see how it goes. Room treatment is the next stage. If you decide to change your power amp then i would agree with @gregm to search for one with a very extended frequency response.
you have a system with potential, that from your description is not breathing at the moment, so try first some better cables, both power and signal and see how it goes. Room treatment is the next stage. If you decide to change your power amp then i would agree with @gregm to search for one with a very extended frequency response.