There is so much information when it comes to home theater and electronics, to some this might be a stupid question. I am curious to know whether differences between speaker efficiency can be or should be adjusted through your receiver’s speaker setup. Such as if the front and rear speakers have a 95dB efficiency rating and the center has a 98dB rating. Should I adjust the center to –3dB or the front and rears up to +3dB, or doesn’t it matter? Thanks.