I've just bought a Sony NW-808 in the States to replace my I-River, and I'm afraid I have to say I'm really disappointed. Quite apart from a distinct lack of bass & 'punch', I'm astonished at the lack of volume in the unit - its permanently on 30, ie max, with lots of experimentation with EQ settings. My question is this - in the absence of an available 'volume hack', should I upgrade from my existing Shure E2Cs to the E500s, and should I consider a small headphone amp. If so, any recommendations for the amp ? Looking forward to replies / help - I love the interface and 'feel' of the unit, so I'm reluctant to give up just yet ! www.fluidimages.co.uk