Used but in good working condition: professional multi-effect processor from Yamaha for 19-inch rack.

Has visible wears and scratches. See attached pictures.

The Yamaha SPX900 is an iconic 1U rack-mountable digital multi-effect processor that Yamaha introduced in the late '80s. The unit quickly became a studio standard for both live sound and professional recordings. The SPX900 is known for its distinctive, slightly grainy vintage digital sound (44.1 kHz / 16-bit) and unmatched flexibility for its time (1988-1989).

Key features and specifications

• Sound quality: A dynamic range of 90dB with a transparent and flat frequency response.
• Simultaneous effects: Can process up to 5 effects at the same time (like compression, distortion, EQ, modulation, and reverb).
• Memory slots: Equipped with 50 factory presets and 49 user-configurable memory slots.
• Connections: Professional balanced XLR inputs and outputs, 1/4" TRS ports, and full MIDI in/out support for real-time control.
• Enhanced tweakability: Offers significantly more in-depth parameters (like diffusion, density, and feedback delay) than its legendary predecessor, the SPX90.