I've owned both the decco and Nova at different times. The Nova has more inputs and can accept up to 24/96 material. I didn't notice much difference in the amps in each unit despite the power ratings.
The Nova was more more versatile with the extra inputs and preouts, but both sounded good. IF you don't have any 24/96 material than the Decco might be all you need.
The Nova was more more versatile with the extra inputs and preouts, but both sounded good. IF you don't have any 24/96 material than the Decco might be all you need.