According to that portie comparison table that was mentioned recently, a noticeable difference between the '831 and the 'R90 is that the Sharp has twice the amp power (10+10mW vs 5+5mW) I'm looking at the R90, because its a Sony :) and generally, it sounds like its rather cool, but I'm apprehensive about the amp power - how much difference does it make in this sort of situation? ATM, it would be driving Sennheiser HD455's, which put out more than enough volume on a Sony walkman, and I've conveniently lost the spec sheet that came with it, so can anyone comment on a headphone amp difference between say, a 5+5mW amp and a standard sorta Sony walkman? Thanks, Nick ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com ----------------------------------------------------------------- To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]