FiiO PL50 is Designed to Replace Standard Switching Adapters and Provide Cleaner, More Stable Voltage for High-End Audio Equipment Dual voltage outputs for versatile compatibility Custom 50VA toroidal transformer made from Japanese steel Metal housing with AC input EMI filter Lower noise floor, tighter dynamics, improved clarity and richer low-end tone Seriously Good Sound The PL50, a high-quality linear power supply, brings to your sound a lower noise floor, more refined dynamics and transients, and a more accurate, warmer tone to lower frequencies. Since the low-frequency noise of linear power supplies is fixed in frequency, this noise can be better and more accurately filtered out. In addition, the large PL50 is also equipped with a filter circuit at the end of the AC, for filtering out interference generated by other electrical devices used on the same AC circuit for even cleaner and more stable power. Custom Transformer The PL50 features a custom 50VA audiophile-grade toroidal transformer, made of high-quality Nippon Steel iron and high-purity oxygen-free copper wires for higher efficiency, higher precision, more stable voltage, and higher energy output. They by their very nature have numerous advantages, allowing them to be very efficient. This is due to the coils in the transformer not having a set angle at which they are bent, leading to a more uniform magnetic field and less magnetic flux leakage. Complex Circuit Design The PL50 features a complex circuit design that has been fully thought through to ensure reliable operation. EMI filtering, transformer rectification, voltage regulation sampling, and multi-stage filtering are all parts of the circuit design so that you can use the PL50 without worry. Premium Internal Components Every component of the PL50 is carefully selected for maximum performance and reliability—including a Shindengen bridge rectifier, TI voltage regulator, and premium capacitors from Nippon Chemi-Con and Rubycon. Specifications Transformer: Customized 50W toroidal transformer Bridge Rectifier: Shindengen 25A 60OV flat bridge Voltage Regulator: TI voltage regulator chip Filter Capacitor: Nippon Chemi-Con and Rubycon capacitors Inputs: (3x) Three-in-one sockets Output: Aviation plug GX16-2 socket Weight: Approx. 4lbs In the Box FiiO PL50 AC power cord DC output cable (5.5mm outer diameter, 2.1mm inner diameter) User manual