{"product_id":"fosi-audio-psu20","title":"Fosi Audio PSU20 Linear Power Supply — 40W, 3 Isolated Outputs, 5V\/12V\/15V","description":"\u003cp class=\"tp-summary\"\u003eThe Fosi Audio PSU20 is a 40W linear power supply with an 80W toroidal transformer, ripple rated as low as 0.1mV and three isolated outputs (two DC plus USB-A) set to 5V, 12V or 15V. It suits desktop setups where a DAC, headphone amp, preamp or CD transport now runs on its own wall adapter.\u003c\/p\u003e\n\u003ch2\u003eWho the Fosi Audio PSU20 is for\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFosi desktop stacks:\u003c\/strong\u003e Fosi built it for its own components, and DC 1 supplies 12V or 15V at up to 20W for a desktop DAC or headphone amp.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFewer wall adapters:\u003c\/strong\u003e Two DC outputs and a USB-A port run up to three devices from one AC outlet, with 1.2m and 0.3m DC-DC cables in the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed-voltage gear:\u003c\/strong\u003e Each port has its own setting (DC 1 at 12V\/15V, DC 2 at 5V\/12V, USB-A at 5V\/1A), so 15V, 12V and 5V devices can share one supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise-conscious systems:\u003c\/strong\u003e Every output has its own rectification, filtering, regulation and protection circuit, and Fosi rates ripple as low as 0.1mV.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkip it if:\u003c\/strong\u003e a device needs more than 20W from one port or a voltage other than 5V, 12V or 15V; 19V, 24V, 32V and 48V power amps need their own supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFosi Audio PSU20 key specs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated output:\u003c\/strong\u003e 40W total (DC 1 20W, DC 2 15W, USB-A 5W)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC 1:\u003c\/strong\u003e 12V or 15V, 20W rated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC 2:\u003c\/strong\u003e 5V or 12V, 15W rated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-A:\u003c\/strong\u003e 5V\/1A, 5W rated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransformer:\u003c\/strong\u003e 80W pure-copper toroidal, up to 100W peak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegulation:\u003c\/strong\u003e Three LM1085IT and one ST78M05 linear regulators, GBU806 600V\/8A rectifier, Nippon Chemi-Con capacitors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRipple:\u003c\/strong\u003e As low as 0.1mV (Fosi rating)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling and protection:\u003c\/strong\u003e Low-noise fan starts at 55°C (30dB); over-temperature, over-voltage and over-current protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC input:\u003c\/strong\u003e Switchable 115V (100–120V) or 230V (220–240V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn the box:\u003c\/strong\u003e PSU20, 1.2m and 0.3m DC-DC cables, AC power cord, user manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"tp-trust\"\u003eGenuine Fosi Audio stock. Free shipping on every order, 45-day returns.\u003c\/p\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":46279107215495,"sku":"Fosi Audio PSU20-black-","price":280.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/5833\/0247\/files\/13882665226.jpg?v=1792672883","url":"https:\/\/tonepier.com\/products\/fosi-audio-psu20","provider":"TonePier","version":"1.0","type":"link"}