I am not familiar with your equipment, so I can't say for sure that the following suggestion will work. However, I was able to tame the brightness in my system with the AH! LS Noise Killer. This is a small filter that you hook to the tweeter terminals on your speakers. It only costs $50, but I do not think you can return it if it doesn't work, so proceed with caution. Suggest you read the reviews at audioreview and search the forums at audioasylum for more info.
