■Sound suitable for music production - "RS THREE" is designed to be easy to listen to while providing monitoring performance on its own, and when used in conjunction with speakers and headphones, it further enhances the sound quality of songs. It is possible. ■Myrinx EL-S driver that combines high input resistance and high acoustic performance - Adopts Myrinx EL-S, which is based on Myrinx EL and has a more detailed control of the diaphragm. acoustune has leveraged its Myrinx driver know-how to develop the Myrinx EL driver for RS ONE. The Myrinx EL-S driver provides more accurate monitoring than the Myrinx driver. The material used for Myrinx EL-S is an ultra-high-performance resin that is lightweight, extremely rigid, and boasts extremely high acoustic performance with high internal loss, even though it is used for medical purposes. It reduces unnecessary incidental sounds that adversely affect the sense of atmosphere and localization, and enables detailed monitoring of the harsh sound field and panning required for recent high-resolution sound sources. In addition, in order to make the most of this Myrinx EL-S driver, we created a large back cavity on the back of the diaphragm and placed a distance from the diaphragm to the grille, so that a signal of up to 250mW (*1) can be instantaneously input. Achieves high input resistance so that it can be used normally even after As a result, the earphone's speaker is durable and will not break even if there is a sudden large input. Because the diaphragm has a large stroke width, it brings out the bass just like a loudspeaker, realizing the quality monitoring required for modern music. *This is when testing a 11kHz sine wave signal. ■Highly robust body that is resistant to shock, heat, and sweat ・The number of parts has been reduced, and a highly robust body has been created by thoroughly researching the parts that are easily broken in earphones through market research. The housing consists of two parts and is made of polycarbonate, which has excellent impact resistance, weather resistance, and heat resistance. By reducing the number of parts as much as possible, we are able to increase the rigidity of each component in a simple manner, greatly reducing the risk of failure even in harsh environments. The faceplate part plays the role of increasing the rigidity of the body while giving the earphone its identity. In addition, the housing design has a small body that fits a wide range of users. ■Uses newly developed earphone cable "ARM011L" with high reliability and easy handling. ・The cable uses wire material woven with high-purity Litz wire and Kevlar wire for easy handling. Adopts PU material covering to enhance the performance. By twisting this, we create a cable that is flexible, easy to handle, and hard to break. ■Uses a new IEM connector "Pentaconn Ear" designed and produced by Nippon Dicks Co., Ltd. that boasts high sound quality and high reliability. ・The plug part and jack part are in closer contact than the conventional MMCX connector, and the conduction performance is excellent. It also achieves both ease of attachment and detachment and robustness. Like the RS ONE, the connector uses Pentaconn Ear Long-Type, which has a structure that prevents sweat from entering the connector part. Compared to other connectors, Pentaconn Ear is a highly reliable connector that reduces the risk of poor contact due to wear and sweat due to attachment and detachment and use, reducing accidents. In addition, even in the unlikely event that the cable breaks, the cable can be easily attached and detached and replaced, making it a structure that emphasizes practicality. Considering the expected usage environment and connection with various equipment, a 1.8m long cable is included as standard, and a 6.3mm stereo standard plug conversion adapter is also included. ■AET earpieces that provide a high fitting and acoustic experience - Comes with silicone earpieces ``AET07'', which was also used as a reference when developing Acoustune earphones, and ``AET02'', which provides a sealing feeling unique to foam types. Achieves high fitting while avoiding sound quality deterioration. A carrying case is also included for easy portability. ■Format: Sealed ■Type: Universal with single dynamic driver