I use a DSPE-800 purely as a decoder I don't use the onboard amps at all, it's good does everything I need. I'd suggest a future upgrade would be to add a power amp (the same make as your current HiFi) for the centre channel to get a better integrated sound. I bought mine from unbeatable and they seemed fine it turned up in about 6 days. Hope that helped, if you have any more questions let me know. Slingshot P.S. the manual for the DSPE-800 is on the Yamaha web site if you need it.