80w per channel at 4 ohms, 40w per channel@ 8 ohms. Yes, this little guy is 4 ohm stable via selector switch! You can also drive four 8 ohm speakers at once. Vintage Kenwood KR-A47 Stereo Receiver from 1988 with phone input for all your recored turntable vinyl needs. Ask me about one if you are looking. Also have a 4 ohms set of speakers that sound amazing with this stereo. Excellent condition and works like new, ready for a new home.