Try it without the rockbox... it's much more user-friendly unless you really want the EQ functions. Convert FLAC -> ALAC and done.
An amp is nice when you use your portable system somewhere quiet (SR80 is not really meant for on-the-road use being open and all), otherwise the iPod is just good enough.
I did try an amp with my SR125 and while it did improve somewhat I just don't think it was worth the money and hassle for these headphones (better get an SR325i + model instead ;))
The IE8 may change this somewhat, but I have no experience there.
Edited by paaj - 10/28/12 at 4:54am