Connecting Marantz SA-1 to a receiver

Dumb question but I'm not a techie: I was just given a Marantz SA-1 SACD player. My only amp at this time is an Arcam AVR-300 receiver. I have twin speakers, not surround. I have a few SACDs but mostly regular CDs. For best performance, should I cable the Marantz to the CD inputs on the Arcam (will that negate SACD quality)? Or cable to the left and right multi-channel DVD-A/SACD inputs (will that impair CD quality)? Many thanks for any and all advice.