Yamaha SPX900 Professional Multi-Effect Processor (Used)

The Yamaha SPX900 is a highly sophisticated digital reverberation and effects system that offers 50 preset effect programs including accurate simulations of natural reverberation and early reflections, delay and echo effects, gated effects, modulation effects, a versatile compressor, a harmonic exciter, multiple effects which function as several Yamaha SPX900 units in one, freeze (sampling) programs and others. 

Condition worn off a bit, sound wise no changes.