The PSS-50 was released at the same time as the PSS-190 and is the lower-end model of the two.
Year Released: 1990
Keyboard: 32 keys
ROM: 100 sounds, 20 rhythms
Dimensions: 498 mm x 170 mm x 64 mm
Weight: 1.1 kg
This keyboard has built-in 0.6-watt mono speaker(s).
Batteries: AA x 6