ALTO Special Purpose Series Amplifiers

M1285R

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

Contact Us

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