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OT300a Output Autoformer

OT300a Output Autoformer
Item# FG-000032-00
$115.00

Product Description

The OT-300a is a heavy-duty step-up autoformer accessory that adapts any power amplifier output with a maximum voltage of approximately 17 to 35 volts to drive a 70-volt distributed line with up to 300 watts. Four voltage taps let you choose the one most appropriate for the amplifier. Conversely, the OT-300a can be used as a high-power speaker transformer, driving loudspeakers with up to 300 watts from a 70-volt distributed line.

The OT-300a autoformer is compatible with any amplifier rated at up to approximately 350 watts at 4 ohms. It has built-on brackets for convenient mounting on a panel or in an equipment rack.

Compatible Amplifier Models:
  • USA 400
  • RMX 850
  • MX 700
  • PLX 1202
  • PowerLight 1.0
  • CX 302 and CX 254
  • DCA 1222 and DCA 1824
  • Any amplifier rated at approximately 70 to 350 watts at 4 ohms


  • OT-300a Spec Sheet (PDF)