Unless your girlfriend starts burning better resolution to the Ipod than downloads, you will never get decent sound. Itunes is highly compressed music. It will never stand a chance against your vinyl, no matter what hardware upgrades you perform.
The only way to get good quality sound from that ipod is to burn from cd's and use a high quality format, not mp3 or similar.
The only way to get good quality sound from that ipod is to burn from cd's and use a high quality format, not mp3 or similar.