Panasonic RX-5080
The RX-5080 was sold in 1982-1983. It came in two versions, shown below. The first is branded Panasonic, the second is branded National and was sold only in Japan. Both have 16cm woofers and 5cm tweeters. Output power is 2 x 5 wats EIAJ/DC, according to the Japanese service manual. Wow and flutter is 0.08% WRMS. Frequency response is 60 to 14,000 Hz when using Metal tape.