Hi,

I did this exact upgrade from a DSP5000HC to the DSP5200HC and noticed very little, if any, sonic improvement.

I also have a DSP5500HC in another system and fully agree with the other comments here that you will get a lot more sonically out of that upgrade. The 5500HC is really big step above the 5000HC in scale.

Theater: 861v4_LPS, 818v3, HD621, Oppo 203, Lumagen Pro, DSP8000SE, DSP5500C, SW1600x2, DSP5500, Epson 6040UB, PS4
Living room: 861v4_LPS, HD621, DSP8000SE, DSP5200C, Oppo 203, Lumagen 2143, 818v3, Sooloos/MC600 Bluesound Node
Bedroom: M80
office: G68D, DSP6000
Garage: DSP5000
Storage: M33s, DSP33s, DSP5k, 501, 518, M1500, G98DH, SW1600