Atlas Sound AF140
140 Watt Autotransformer


Atlas Sound AF140 autoformer can be used to solve a wide variety of impedance-matching and voltage step-up/step-down problems. Unit serves as an efficient method for matching impedance or voltage levels between power amplifier outputs and loudspeaker loads at high power levels. Model AF140 is suitable for use in a wide variety of professional and commercial sound applications.

Model AF140 consists of a single coil autoformer with multiple taps for maximum flexibility in matching a wide variety of loudspeaker loads to power amplifier outputs. A single AF140 will handle loads up to 150 watts and by connecting two units in series, power handling capacity can be increased to 300 watts.


  • Serves as a Method for Matching Loudspeaker Loads to Amplifier Outputs
  • Suitable for Professional and Commercial Sound Applications


Add to Cart

We're sorry, only of this item available

Call a Sales Pro at for more information

Serving Contractors, Dealers, and Installers Since 1977

Contact: 1-800-828-0509 / Hours: Mon - Fri 7:00AM - 7:00PM