The NJM4558L with SIP8 Operational Amplifier ROHS manufactured by JRC is a commonly used integrated circuit (IC) for audio mixing and amplifying. It is a dual general-purpose operational amplifier with wide bandwidth, low-noise, and high-slew rate characteristics, making it an ideal choice for applications such as active filters, signal processing, sound effects, and other multi-channel applications. The NJM4558L is available in a RoHS compliant SIP8 package, allowing for increased reliability, efficiency, and electrical performance in a small package size. It features low distortion, low noise, low power consumption, wide frequency response, and high slew rate, which makes it a great choice for high-performance audio projects.