You have a high end unit but are still using the cable that came with your system?
High quality cable is simply a must if you wish to achieve an optimal sound:
Two 1,75-mm2 oxygen free (OFC) inner conductors, protected from HF interference by a triple-coated foil, a solid yet flexible nylon mesh outer fabric and the cable is ready for the highest transmission quality and mechanical capacity.
The 12 mm main cable branches through a sealed casing of metal and carbon and surfaces after around 14 cm in two metal-/ carbon jacks with 24 ct. gold-plated contacts.
The C-900 is available in lengths of 0,5 m and 1 m.
HiFI TV Kabel 01/2011 testet das Block C-900