ALTO AcapellaTM Series Amplifiers

DX-130

Aircraft 4 Channel Digital Amplifier with Single Source Input

  • The Alto AcapellaTM Series DX-130 is a TSO-C139a certified amplifier for aircraft cabin loudspeakers. The unit has 4 channels with one stereo input with a discrete PA override feature.
  • The integrated Digital Signal Processor contours the sound for perfect matching to the loudspeakers.
  • Weight < 2.0 lbs / 0.9 kg
  • Dimensions 5.3”W x 1.7”H x 9.8”D (135mmW x 42mmH x 249mmD)
  • Frequency Response 20Hz - 20KHz custom contoured to specific aircraft cabin
  • Learn More Product Documentation

DX-135

Aircraft Channel Digital Amplifier with 4 source Input

  • The Alto AcapellaTM Series DX-135 is a TSO-C139a certified amplifier for aircraft cabin loudspeakers.
  • The unit has 4 channels with 4 stereo inputs with discrete source selection, volume control and speaker on/off and a PA override feature (3 stereo inputs if PA is used).
  • Weight < 2.0 lbs / 0.9 kg
  • Dimensions 5.3”W x 1.7”H x 9.8”D (135mmW x 42mmH x 249mmD)
  • Frequency Response 20Hz - 20KHz custom contoured to specific aircraft cabin
  • Learn More Product Documentation

DX-140

4 Channel Power Amplifier with 5 Headphone Outputs

  • The Alto AcapellaTM Series DX-140 is a TSO-C139a certified combination amplifier for aircraft cabin loudspeakers and headphones.
  • The unit has 4 channels with 3 stereo inputs with discrete source selection, volume control and speaker on/off and a PA override feature.
  • Weight < 2.2 lbs / 1.0 kg
  • Dimensions 5.3”W x 1.7”H x 9.8”D (135mmW x 42mmH x 249mmD)
  • Frequency Response 20Hz - 20KHz custom contoured to specific aircraft cabin
  • Learn More Product Documentation

DZ-290

4 Input Digital Amplifier with High Level Interface

  • The Alto DZ-290 is a TSO-C139a certified 4 X 40W/channel Class D audio amplifier for aircraft cabin loudspeakers. This amp is specifically designed to interface with existing PA/Entertainment amplifiers having high level speaker outputs.
  • Entertainment audio sources can be wired directly to the line inputs of the DZ-290 thereby bypassing the legacy PA/Ent amplifier, substantially improving audio quality and reducing noise and interference.
  • Weight < 3.2 lbs / 1.4 kg
  • Dimensions 5.3”W x 2.65”H x 9.8”D (135mmW x 67mmH x 249mmD)
  • Frequency Response 20Hz - 20KHz custom contoured to specific aircraft cabin

  • 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