Thanks for all the info. I guess i have eliminated RH1 now. Still deciding between DH10P and RH10. What kind of batteries do they take? Do they have to be charged by removing the battery from the unit or is it charged by just using the adapter of the MD player or by inserting the USB into the computer? What exactly do u guys mean by the HD Amp sounds "harsh"? I basically listen to jazz, blues, retro, african, rock (not heavy metal), indian classical instrumental stuff if it helps u guys. I used to have a NH600D but it was stolen ... damn ... hehehe ... just looking for something better now since i can afford it ...