Hi All, So I've hit a roadblock thats really been getting me down, hoping someone can shed some light on the situation. I've been taking my mixes and checking how they sound on various systems other than studio monitors; ipod, home stereo...so far all seem in the ballpark. Then I get to my car stereo. Upon first listen they seem okay and then I hit the little Dolby NR button on the tape deck that my ipod is plugged into and voila, I loose like 6db of everything above 4k! Good bye cymbals and some vocal clarity. When I listen to commercial albums on the same system and hit the Dolby button nothing happens, all high frequency information is retained. Do commercial releases go through some step during mastering that adjusts for this or do my mixes need some serious tweaking? Thank you!!