Speakers, their room position, their aiming, the room dimensions and the reflectivity of the surfaces (drapes, rugs, sofa, glass windows, glass coffee table), and your listening position are the far more important things to worry about. Room correction systems and how you set them also matter, but the raw preamp and power amp of 2ch gear of name brand stuff like this is usually as good as any other if there is no hiss and no overload even when played at the loudest level you specifically need (based on speaker efficiency, listening distance, and personal taste).
