I love those Joseph speakers! Earlier this spring I was looking at the Parasound pre-amp and power-amps for stand-alone system, unconnected to my desktop and computer, and they're great buys. The Oppo is phenomenal for a desktop setup, and I can see using them with active speakers, but given the flexibility of the Parasound preamp and the heat of the Oppo, I'd be inclined to go with the Parasound in your system. After all, they have those other features, and the phono input and bass management for a sub. The Oppo will let you play DSD, though, unlike the Parasound. Of course, you could keep both!