Help, is 15 watts p/c enough for a small room

Nice sounding unit, for what it is. Is this den system going to be your main listening room ? As stated above : Speaker sensitivity, impedance, listening levels, and the kind of music listened to, such as full, all out orchestral, disco, reggae, and some others, will determine the power required for a particular listening situation. The 1st watt is the most important, as far as cleanliness. And if you have a speaker that does not reproduce the last octave, your receiver will work a little less hard, as bass uses up a bit more power. Enjoy ! MrD.

I would also like to add, that these receivers, and other Japanese audio equipment from the mid 70s, were cheap several years ago. But now, they are demanding high dollars. Most need a good cleaning, and some require a rebuild / restoration. This was the bottom of Pioneer’s line, and even if it is mint, it is old. Just a caution in the wind. Good luck.