The "KA Series" was developed using the elemental technologies for electrolytic capacitors for sound quality that we have accumulated so far. As a result of the strict adoption of carefully selected components and performance optimization via listening tests using actual devices, the "KA series" yields even higher sound quality than our previous 105°C-resistant products. It provides excellent sound resolution and delivers massive bass. A high-level of sound-quality improvements can be experienced in a wide range of audio devices, from the consumer level to high-end devices.