I am fairly new to the portable amp idea...but have decided to invest in one for use with my iPhone 4S and iPad 2 (both of these containing Apple Lossless Files).
The question is, at the moment I have the option to purchase either the RSA SR-71 or the Fostex HP-P1. Both of these are second hand and obviously the Fostex is still considerably more expensive that the RSA.
I know the Fostex will take the digital feed and convert it to analogue whereas the RSA is just a pure amplifier using the i products built in DAC........would I gain much improvement though by opting for the Fostex or would the RSA be a good solution??
The Fostex does also look a fair bit bigger than the RSA (I believe the RSA is the size of a ciggarette packet).
What do other people think and what would you do in my shoes???