Originally Posted by gratefulshrink
Just to be clear, using an amp with an ipod is [nearly] a waste unless the dock/line-out is taken advantage of. IMO, of course.
Using a SuperMacroV1 off the HP out (iPod Photo 60) with either ER4P/S, EX71, E3C, SR80 or HD650 gives a quite dramatic, easily noticeable improvement for me over those cans direct off the HP out (for various reasons: 300 Ohm Senns need a bit of current, the others suffer the low-impedance bass falloff).
Using the line out (pocket dock or sik din) with the above does seem to squeeze the last drop out of it tho'.
The problem seems to be with the phones loading up the output stage of the iPod - and surely this is exactly what would happen with phones if plugged straight into the line-out via a pot?
I have to use the hp out with the amp portable myself because neither the sik or the pocketdock will squeeze comfortably into my Gigabag.