All my 5.1 speakers are cheapy, except center, its the Klipsh RC-41. I will upgrade rest soon. In my opinion having bright for center channel is the best, because I don't listen to it at full blast and the sound is very clear especially human voices. Speaker is pointed right where are ears are. When listening to music I don't sit where watch TV, so Getty Lee won't sound like a Nazgul. For left and right I don't want it bright , maybe Definative hardware is a better route. For surrounds I'm not sure yet.
When I listen to music I like it very loud, I don't think a total bright is what I want. Extrapolating, I think sections of "Shine on you crazy diamond" would make me feel like Sid if my system was really bright.
But just my opinion. I'm no exprt.