4ohm 8ohm 120W Output Audio Low Frequency Transformer

How do audio transformers work?

Audio transformers comprise of copper wire windings around a steel or nickel-iron core. Steel is used for lower frequency transfer due to its high degree of hysteresis, while nickel is used for higher frequencies because of its high permeability. The windings around the core determine the increase, decrease, or maintained impedance level, as the signal passes through the transformer. It is the number of turns on each winding that determines whether the transformer provides a gain or loss of signal. More turns on the input winding means a decrease in signal, while more turns on the output winding means an increase. The difference between these input and output signals is what is known as impedance ratio, which is different for different kinds of audio equipment like amplifiers, loudspeakers, microphones, and recording equipment. Although an audio transformer does not have a physical connection between its primary and secondary coils, it provides a bi-directional feature between the two windings. The primary can be used as secondary, and vice versa. Such transformers can thus provide signal loss in one direction, and signal gain in the reverse; or the other way round.

According to the usage and design,there are Ei19 transformer,Ei28 Transformer,Ei35 Transformer,Ei48 Transformer,Ei57 transformer,Ei66 transformer,Ei76 transformer,Ei 86 transformer,Ei 96 transformer etc series.

Our Factory also provide OEM Audio Line Transformer service,it can be made to meet customer product features and quality requirements.

Application Fields

Widely used in public broadcast system, ceiling speaker, audio amplifier, stage lighting, radio communication, radio and television, conference system, frequency divider, automatic control and other fields

Material