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Yamaha AX-640



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Brand: Yamaha

The Yamaha AX-640 is a 64-note midi controller keyboard that combines traditional piano-style keys with modern digital technology. It allows musicians and composers to easily connect and control software and hardware devices in a studio or live performance setting. Some notable features include a full-size, graded keyboard with Escapement and Synthetic Ivory feel, 16 backlit pads for triggering samples and loops, and a LCD screen for displaying real-time performance data. The keyboard also comes with over 1,100 voices, 385 XGL (extended gauze speaker) voices, and sibiling DX7 equals stored voices from Yamaha's legendary DX7 synthesizer. Additionally, the AX-640 has a variety of control inputs and outputs, including MIDI IN, OUT, and THRU, USB, and Sustain, Soft, and Express pedal inputs. Overall, the Yamaha AX-640 is a versatile and powerful midi controller keyboard that is geared towards professional musicians and composers.



  • Power Output: 85W into 8Ω (stereo)
  • Frequency Response: 20Hz to 20kHz
  • Distortion: 0.01%
  • Damping Factor: 100
  • Speaker Impedance:
  • Input Sensitivity: 2.5mV (mm), 0.16mV (mc), 150mV (line)
  • Signal to Noise Ratio: 92dB (mm), 76dB (mc), 102dB (line)
  • Line Output: 150mV (line)
  • Dimensions: 435 x 139 x 330.5 mm
  • Weight: 8 kg
  • Year: 1990
  • Price:

Yamaha AX-640

Yamaha AX-640

Yamaha AX-640

Yamaha AX-640

Yamaha AX-640

Yamaha AX-640

Yamaha AX-640

Yamaha AX-640

Yamaha AX-640

Yamaha AX-640



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