You can start with any home computer, laptop, tablet or smartphone you already own and run a wired connection to digital or analog inputs to start or even easier put a Bluetooth adapter on an amp line input and start with that.
I auditioned gear at a dealer recently using Plex app on on my iPhone with Bluetooth connection to the amp streaming from my music library at home and it sounded very good. Any music streaming software or service you choose like say Spotify for decent sound and wide selection will do.
I auditioned gear at a dealer recently using Plex app on on my iPhone with Bluetooth connection to the amp streaming from my music library at home and it sounded very good. Any music streaming software or service you choose like say Spotify for decent sound and wide selection will do.