High quality components
SMSL has taken care to select only high quality components in order to allow the P1 to develop excellent audio performance and a rich, dynamic and accurate sound reproduction.
The amplification circuit is thus based on 4 AOPs in a symmetrical architecture with feedback correction circuit. Digital volume control is handled by a PGA2311U.
The power supply includes a custom Norateluk low noise transformer offering an efficiency 1.3 times higher than a conventional transformer. 6 Siemens Epcos coupling capacitors, WIMA capacitors or low noise regulators allow filtering to deliver an electrical signal specific to the different circuits. In addition, the power supply circuit is physically separated from the other circuits to limit the impact of interference.