You have some options with the Akai. I believe it is a quad receiver or you can run in 2 channels for "double power". Also, I would be tempted to try it in "quad" mode just to see. This has all the quad electronics and you might as well have some fun. I would lean harder toward some higher efficiency speakers and start by looking at that first. I would be tempted to garage sale some speakers to start, to see how the quad sound is. From there, they are harder to find these days, I'd go with some JBL monitors or something like the Klipsch Forte. I drive some JBL 4312's with 35 W/ch and that is plenty loud enough. Some people swear by Sansui speakers but I have never been able to appreciate. Good luck.
Akai AS-980
Specifications
Akai AS-980
Specifications
Tuning range: FM, MW
Power output: 50W/ch (stereo), 32W/ch into 8Ω (quadraphonic)
Frequency response: 20Hz to 50kHz
Total harmonic distortion: 0.1%
Input sensitivity: 3mV (mic), 3mV (MM), 170mV (DIN), 170mV (line)
Signal to noise ratio: 35dB (mic), 35dB (MM), 40dB (DIN), 35dB (line)
Output: 170mV (line), 34mV (DIN)
Dimensions: 650 x 168 x 426mm
Weight: 20.5kg