A:Answer The Yamaha RX-V481 receiver has connections for 5 speakers (two front, two rear surround, one center) and one subwoofer (subwoofer should have built in amplifier.)
The default output settings are 140 watts per channel at 8-ohms. (for 8-ohms and higher speakers)
You can change the 8-ohms setting to 6-ohms in setup.
With the information you have provided, this appears to be a good match.