Transformers for audio equipment
At their most basic level, transformers consist of a primary and secondary winding situated around a magnetic core. Audio transformers are used to transmit sound signals from the primary to secondary winding with high accuracy and minimal distortion. Audio transformers are used to improve overall sound quality by facilitating smooth and efficient transfer of sound energy. Matching impedance and voltage helps to ensure that the sound is transferred from the input source to the output device with a high degree of accuracy and minimal distortion. In order to ensure optimal power transfer, audio transformers adjust the impedance as the current flows from one component within the system to the next by adjusting the rotations of its primary and secondary windings.
Audio transformers perform several functions:
- Increase or decrease signal voltage
- Increase or decrease the impedance of circuit
- Convert the circuit from unbalanced to balanced and from balanced to unbalanced
- Block DC current in a circuit while allowing the AC current flow
- Electrical isolation of one sound device from another
When an AC signal is applied to the primary input winding, a corresponding AC signal appears on the output secondary winding due to the inductive coupling of the soft iron core. The turns ratio between the input and output wire coils provides either an increase or a decrease of the applied signal as it passes through the transformer. As well as increase or decrease a signal voltage, transformers also have one very other useful property – isolation. Audio transformers also play an important role in eliminating DC current in order to match the voltage levels necessary for optimal transfer of audio energy. Since most audio amplifiers operate on low AC signals, it is necessary to modify naturally occurring DC waves when transferring sound from amplifiers to speakers or recording equipment. DC blocking by audio transformers allows for optimal sound throughput by removing the DC signals. Audio transformers are designed to modify the signal between various audio components in a sound system to provide the ideal sound balance.
There are two basic types of transformers:
- Step-up/step-down transformers
- Isolation transformers
Step-up/step-down transformers – the primary and the secondary coils have a different number of windings, that means they have different impedances. Different impedances cause the signal level changed as it goes through the transformer.
Isolation transformers – each coil has exactly the same number of windings which makes the impedance identical. This transformer doesn’t change the signal level but guarantees the physical electrical insulation between coils.
Buy transformers for audio equipment in our stores
You can buy transformers in our stores. It is also possible to place an order in the online shop. Delivery is carried out all over Ukraine. Thanks to the wide assortment, everyone will find a suitable product for themselves. You can always count on professional advice and assistance. We care about the quality of service and do everything we can to make sure you are satisfied with your purchase.