Less fatiquing

My Bryston 3B and Bryston preamp .5 are beautiful pieces but also very bright. I am just getting into this hobby and dont have alot of money but thought someone could make a suggestion to make my system warmer and less shrill at higher volumes. I have tara lab prism interconnects and PSB Image 5T speakers. Oh and I am using a Rotel RX965 Limited cd player or the Denon 2500 DVD as a player. Thanks in advance...bt