The Automatch II Transformer is a 400-watt line-matching transformer that allows the conversion of the output impedance of any direct-coupled power amplifier upward or downward to match the impedance of a particular loudspeaker system. This includes an isolated secondary winding for use in 70 and 100 volt systems. The Automatch II transformer features a punched and welded base plate for convenient mounting and heavy-duty screw-type terminals for positive connection from the power amplifier and to the external speaker wires.

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