If I remember correctly, the 777 has preamp outs. I would buy a good multi-channel power amp and add it to the receiver. They're many good amps that can be had for the cost of a new receiver.
I found the 170w of digital power (STR DA5000es) to not even sound as powerful as the older DA3es receiver.
Also, the fellow above is correct. You need an amp capable of driving 4 ohms with no trouble. Most receivers don't like this low of an impedance.
I found the 170w of digital power (STR DA5000es) to not even sound as powerful as the older DA3es receiver.
Also, the fellow above is correct. You need an amp capable of driving 4 ohms with no trouble. Most receivers don't like this low of an impedance.