ALTO Special Purpose Series Amplifiers


Aircraft Chime Amplifier with 12 Tones

  • The Alto M1285R chime amplifier is a TSO-C139a certified amplifier for aircraft cockpit or passenger address tone generation. The unit has 12 available tones, which can be triggered by high or low opto-isolated discrete logic inputs.
  • The amplifier has an audio power amplifier output supporting loudspeaker loads down to 4 ohms and up to 30 watts. The amplifier has two line outputs capable of providing 40mW into 600 ohm. The unit is fully configurable via a custom software interface to support custom tone and volume settings.
  • Weight: < 2.9 lbs / 1.31 kg
  • Dimensions 6.2”W x 3.63”H x 8.14”D (157.5mmW x 92.1mmH x 206.7mmD)
  • Frequency Response 20Hz - 20KHz
  • Learn More Product Documentation

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Corporate address

ALTO Aviation

86 Leominster Road, P.O. Box 399
Sterling, MA 01564

ALTO Fabrication

86 Leominster Road, P.O. Box 399
Sterling, MA 01564

Give us a call or send us a fax:

Toll Free: 800 814.0123

Phone: 978 466.5992

FAX: 978 466.5996