ST-90-05-K (Black)

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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. ------------------------------------------------------------------------------------------------------------------

Ashida Acoustics Co., Ltd., a company with over 80 years of history that has produced top-of-the-line headphones to meet the high demands of musicians and engineers, has developed these high-quality headphones for general consumers, with a focus on domestic production. In 1957, we developed the ST-1 as a professional headphone, and since then we have sold various headphones to many studios, broadcasting stations, and other organizations. The "ST-90," which has been a long-time favorite, has now been commercialized as the "ST-90-05" for music use. It is equipped with a high-quality Φ40 driver unit developed using the know-how gained from designing many top-of-the-line headphones. Featuring a diaphragm made of high-compliance, lightweight engineering plastic film with excellent tanδ, and a powerful magnetic circuit with a theoretical value of 1 Tesla, these headphones deliver a rich and full sound across the entire frequency range, even in a small on-ear type headphone. Weighing just 110g, these headphones are remarkably lightweight, making them ideal for mobile use. Furthermore, they boast the high durability proven in professional applications. They retain a timeless retro-modern design, and feature a simple yet smoothly adjustable headband slide mechanism. Ashida Acoustics Japanese-made Music Headphones ST-90-05