Purists could literally use the 50n CD player as a multi-source preamp via its variable analog outputs. Just connect a 2CH power amp and some speakers and you're good to go. Or, you could use the 50n ...

The Marantz MODEL 50 integrated amplifier and CD 50n streaming HDMI CD player ($1,800/ea) boast audiophile componentry, low impedance power drive, and unmatched digital source connectivity options.| ...