Audio Output Step-Up Transformer for RCA (EI14)

This is a step-up transformer using a small EI14 transformer.
It connects via RCA plugs.
If your analog audio source is too quiet and you have to turn up your amplifier's volume significantly, inserting this between them will increase the source volume.
This step-up transformer is for analog audio sources, can be easily connected without needing a power supply, and theoretically offers a 12.7x boost.
Please judge from the product's internal image and the detailed explanation image of the transformer.

We have kept our listing price the same until now, but recently, further increases in component prices and shipping costs have continued, making it difficult to maintain the current price.
We apologize, but from June 1, 2026, we will be increasing the price by 200 yen. We appreciate your understanding.