Multiefectos Yamaha FX500

Vendo este multiefectos de Yamaha:
YAMAHA FX500 MULTI-EFFECTS PROCESSOR

Frequency response: 20Hz-20kHz.
Dynamic range: 85dB + , effect off.
A/D and D/A conversion: 16-bit linear.
Sampling frequency: 44 1 kHz.
Rear panel: Input jack, L&R Output jacks, stereo Phones jack, Bypass and Memory Inc/Dec footswitch jacks, MIDI In, DC 12V power, Phones Level control, Output Level switch (-20/-10dB).
Effects sections: Compressor, Distortion, EQ, Modulation (Chorus, Flanger, Symphonic, Tremolo), Reverb (Reverb, Early Reflection, Delay, Echo, Reverb+Delay, Reverb>Delay, Delay>Reverb).
Memory: 60 ROM Programs, 30 RAM Programs.
Power supply: External 12V transformer.

http://www.muzines.co.uk/articles/yamaha-fx500-multi-effects/142
http://www.muzines.co.uk/articles/yamaha-fx500/5776

Genial, sonido U2
https://www.youtube.com/watch?v=n4AUuCauS4s

Funciona perfectamente, el interruptor de encendido no va, siempre está en ON