I get this system through a incentive program at work . I figure the passive sub would be anemic so I also `` buy '' a altec lansing 4.1 with power sub at the same time to mix and match . the sound of this amphion with passive sub blow the power sub away . out of the box , it rock ... cd sound great ... dvd sound great ... big sound from a little system . it have AM and FM receiver with a lot of preset ... include antena for both band ... the progressive dvd player give excellent color saturation and clarity . I be not exaggerate , but it look so much better than my apex ad660 which still look so much better than videotape . I could not be happier with it and not just because it be `` free . '' I have not yet determine if it have official dt support - no dt insignia on the front , although the owner 's manual and setup screen mention dt setup mode ... it do pop up a little light diagram show 5 channel when I put in any Dolby digital and \/ or DTS dvd . I manage to screw up the setting to the point where it sound like a cardboard box ... and to the point where it overdrive the speaker ... but after a `` set default '' thing sound excellent again . there be several mode include `` concert , '' `` theater '' and the unintentionally hillarious `` bathroom '' setting . this be not a audiophile 's dream system , but it give very correct sound and video for the money and be the pinnacle of `` out of the box home theater . '' buy it , use it as it come out of the box and Rock On .