Marantz SA8260 Direct to Amp

The closest you could come is with a passive unit. Don't try it otherwise as you're likely going to blow some speakers.

What I meant is that if he hooks up the Marantz directly to the amp without a passive at minimum it's likely he'll blow his speakers. The Marantz has no volume control I'm aware of and I have one. Standard output of cd players is about 2 volts or more than the maximum required by many amps to put out full power. He should at least get a passive as that's the closest thing to no preamp but personally I'd just get a real preamp. I've not tried any passives but would not want to lose any dynamics that I've read people talk about using passives.