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【Voltage Compatibility】
When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device’s requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.
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Ashida Onkyo Co., Ltd., which has been in business for over 80 years and has produced top-quality headphones that meet the high demands of musicians and engineers, has developed high-quality headphones for general users with a focus on domestic production.
In 1957, we developed the ST-1 as professional headphones, and since then we have sold a variety of headphones to many studios, broadcasting stations, etc., and have commercialized the long-favored ST-90 as the ST-90-05 for music use. Equipped with a high-quality Φ40 driver unit developed using the know-how of designing numerous high-end headphones.
Equipped with a diaphragm that uses engineering plastic film that is highly compliant, lightweight, and has good tanδ, and a powerful magnetic circuit with a theoretical value of 1 Tesla. Even though it is a small on-ear type headphone, it has a thick core and rich sound quality throughout the entire range.
Weighing only 110g, these headphones are quite light, making them ideal for mobile use. Furthermore, it is highly durable and has a proven track record for "commercial use." Follows a timeless retro-modern design. The headband slide structure allows for smooth adjustment despite its simple structure.
Music headphones ST-90-05 Made in Japan
