What age is it, and does it have the codecs, Dolby True HD and DTS Master HD.
If it does not then that is the reason for your problem.
The other possibility is that your speakers do not have enough resolution to tell the difference.
The Amply is new and have all the new codecs. Is 3d Ready.
Kit 5.1 is five years old.
Here the specs. of Kit:
System Frequency Response 30 Hz-25 kHz
Satellite Speakers 4 satellites
Type Full-range dual cone acoustic suspension
Nominal Input Power 30 W
Maximum Input Power 100 W
Sensitivity 86 dB/2.83 mV/ 1 m
Impedance 6 ohms (except subwoofer)
Dimensions (W x H x D) 72 x 164 x 111 mm
Weight 0.9 kg
Center Speaker Nominal Input Power 30 W
Maximum Input Power 100 W
Sensitivity 86 dB/2.83 mV/ 1 m
Dimensions (W x H x D) 300 x 72 x 110 mm
Weight 1.1 kg
Subwoofer Driver 16cm cone
Dynamic Power 100 W
Dimensions (W x H x D) 200 x 365 x 375 mm
Weight 8.5 kg
Is it the kit the reason?
Andrea