Hi guys, first post here.....so go easy Just wondered about the 'real world' differences between the 'HD Digital Amp' and the 'Digital Only Amp' found on players such as the MZ-DH10 and MZ-RH10 respectively? Basically I am trying to decide between these two, or the MZ-NH1 What differences will I notice with a High Definition Amp (will be using high spec headphones/earbuds and maybe plugging into home system)? Has anyone had practical experience with both types? Cheers, Adam