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

Yes, but 12 X 12 is a BAD sounding room to begin with! A pair of Heresy's will play loud enough to cause permanent deafness with 15 watts - but do you really want to lose your hearing?

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.

Ive owned quite a few vintage recievers and agree it depends on what you are looking to get out if it. If you are looking for a background music maker, the Klipsch Power Gate is a great sounding integrated for the money. Hypex 50 wpc amp, bluetooth, usb and optical input, 2 analog inputs and built in play-fi streaming.

$150 bucks shipped.