Yamaha PSS460 - DAC Noise Reduction?

[yamahamster]

Hey guys,

I'm sure plenty of you out there have/had a PSS. I'm wondering if anyone has successfully reduced the noise floor from the DAC? I know it's a cheap keyboard and a lot people wouldn't care, but my curiosity is getting the better of me. From reading up on DAC noise in general (not related to keyboards) people say to pay particular attention to the circuits grounding.

Can anyone help me out?

Thanks!

[insearchof]

i'd be interested to know about this too, I have a 680, which is great but the noise floor increasing/decreasing when changing patches can be a bit irritating at times.