Thankx Danny for your reply. Maybe I'm just mistaken. I never tried them out together. The X1 is in a different store. Maybe it's the acoustics of the store if that would make a big difference. Also, I never changed the equalizer so that can also be a problem.
Doesn't anyone out there have the psr740? Do you also realise the fill problem? Is there anything to do about it?

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Jick