{"product_id":"fiio-pl50-low-noise-regulated-power-supply","title":"FiiO PL50 Low Noise Regulated Power Supply","description":"\u003cp\u003eThe FiiO PL50 is a low-noise regulated linear power supply that replaces the switch-mode adapter of FiiO desktop products. A well-designed power supply is the foundation of good sound, and FiiO says the PL50 brings a lower noise floor, more refined dynamics and transients, and a more accurate, warmer bass. It outputs 12V or 15V at up to 3A, to suit a range of FiiO devices, from a custom 50VA toroidal transformer in an aluminium-magnesium case.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/fiio-pl50-low-noise-regulated-power-supply-photo-hero.jpg?v=1791341140\" alt=\"FiiO PL50 linear power supply, front and rear\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy a linear supply sounds better\u003c\/h3\u003e\n\u003cp\u003eLinear supplies give a stable, high-quality voltage with less ripple and lower noise. Their noise is mainly low and fixed in frequency, which the ear is relatively insensitive to and which can be filtered out accurately. A switch-mode supply’s noise is higher in frequency and can radiate into the analogue circuits of your audio equipment, directly affecting the sound, and even indirectly affect the digital circuits. FiiO’s comparison at rated output shows the difference in ripple between a general power adapter and the PL50.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/fiio-pl50-low-noise-regulated-power-supply-photo-ripple.jpg?v=1791341145\" alt=\"Ripple of a general power adapter compared with the FiiO PL50\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eA custom audiophile-grade transformer\u003c\/h3\u003e\n\u003cp\u003eThe custom 50VA toroidal transformer uses high-quality Nippon Steel iron and high-purity oxygen-free copper wire for higher efficiency, precision and stability and more energy. Toroidal windings have no fixed bending angle, which gives a more uniform magnetic field and less magnetic flux leakage.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/fiio-pl50-low-noise-regulated-power-supply-photo-transformer.jpg?v=1791341149\" alt=\"The custom 50VA toroidal transformer of the FiiO PL50\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eQuality parts and a carefully designed circuit\u003c\/h3\u003e\n\u003cp\u003eA Shindengen 25A 600V flat bridge rectifier, a TI voltage regulator, and Nippon Chemi-Con and Rubycon capacitors were chosen for high, reliable performance. The circuit runs from EMI filtering through the transformer, bridge rectifier, regulation with voltage sampling and several stages of filtering to a protection stage, with voltage switching, fine-tuning and a display. The EMI filter at the AC input removes interference from other equipment on the same mains circuit, for cleaner, more stable power.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/fiio-pl50-low-noise-regulated-power-supply-photo-caps.jpg?v=1791341154\" alt=\"Chemi-Con and Rubycon capacitors inside the FiiO PL50\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/fiio-pl50-low-noise-regulated-power-supply-photo-circuit.jpg?v=1791341160\" alt=\"The circuit design of the FiiO PL50\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eMetal construction and safety certification\u003c\/h3\u003e\n\u003cp\u003eLike FiiO’s other products, the PL50 has an aluminium-magnesium alloy case that feels refined and shields the internals from external noise and interference. A 3-digit display on the front shows the output voltage. It is designed and built to strict safety standards and carries various international safety certifications.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/fiio-pl50-low-noise-regulated-power-supply-photo-stack.jpg?v=1791341163\" alt=\"FiiO PL50 powering a FiiO desktop headphone amplifier\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/PL50_2023_1000x391_b7f207e2-c152-445b-ae8b-6057886e214a.jpg?v=1767174772\" alt=\"FiiO PL50 showing 12.0V on its front display, powering a FiiO K5 Pro\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTransformer\u003c\/th\u003e\n\u003ctd\u003eCustom 50VA (50W) toroidal, Nippon Steel core, oxygen-free copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRectifier and regulation\u003c\/th\u003e\n\u003ctd\u003eShindengen 25A 600V flat bridge · TI voltage regulator · Nippon Chemi-Con and Rubycon capacitors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003ctd\u003e12V or 15V DC, 0–3A · GX16 (2-pin) aviation socket and 5.5 × 2.1mm DC · ripple \u0026lt;20mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput\u003c\/th\u003e\n\u003ctd\u003e100–120V or 220–240V AC · three-pin socket · 1A\/250V fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplay\u003c\/th\u003e\n\u003ctd\u003e3-digit output-voltage display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize and weight\u003c\/th\u003e\n\u003ctd\u003eAbout 190 × 114 × 62mm · about 1.72kg · black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eGood to know\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSet the output to the voltage your device needs before connecting it. FiiO recommends the PL50 as an external supply for the \u003ca href=\"\/products\/fiio-r9-flagship-desktop-media-player-with-dual-es9038pro-dac-chip\"\u003eR9\u003c\/a\u003e (15V), for example.\u003c\/li\u003e\n\u003cli\u003eThe older and newer versions have exactly the same functions and configuration; only the appearance differs.\u003c\/li\u003e\n\u003cli\u003eFor a 75W supply with a fully discrete regulator, see the \u003ca href=\"\/products\/fiio-darkside-pro-low-noise-regulated-linear-power-supply\"\u003eFiiO DARKSIDE PRO\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eIn the box: PL50, UK mains cable, DC output cable and manual.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FiiO","offers":[{"title":"Default Title","offer_id":57116004450691,"sku":"FIIOPL50","price":134.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/img_proxy_bf9a464e-e69c-4875-be4a-448290471294.jpg?v=1767174793","url":"https:\/\/www.advancedmp3players.co.uk\/products\/fiio-pl50-low-noise-regulated-power-supply","provider":"amp3","version":"1.0","type":"link"}