It offers high-capacity, "no-bottleneck" power delivery that improves audio quality without the dynamic compression often caused by other conditioners. The "ver. 24" update specifically introduced an upgraded, more precise voltage measurement system and shifted production entirely to Poland for stricter quality control. HiFi-Advice notes that it acts to "remove restraints without any penalties," increasing liveliness and dynamic impact. Unlike many passive or active conditioners that can "choke" power amplifiers, the PC-4 EVO+ uses a double buffer circuit with Audio Grade compensation batteries to provide almost unlimited impulse capabilities.