![Future Spa [Model 1173]](images/marquees/4460.jpg "Future Spa [Model 1173]")
Future Spa © 1979 Bally.
Bally MPU AS-2518-35
Model Number : 1173
Main CPU : M6800 (@ 475 KHz)
Sound CPU : M6802 (@ 895 KHz)
Sound chips : General Instrument AY8910 (@ 895 KHz)
Released in March 1979. Future Spa was the first Bally game to use continuous background sound.
6,400 units were produced.