Susumu, one of the leaders of thin film resistor innovation, has been introducing many offspring of its RG series, one of the most precise, accurate, and reliable thin film resistors in the market. Among them are the RM series (resistor networks), the URG series (ultra-reliable resistors), and the PRG/HRG series (high power version of RG series). In this presentation, Susumu will introduce the precision audio resistors, the RS series, which is specially formulated for better Hi-Fi sound quality.