{"product_id":"fiio-darkside-pro-linear-power-supply","title":"FiiO Darkside Pro Regulated Linear Power Supply","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThe stock switching-mode power adapter that ships with most desktop DACs and amplifiers is built for cost and size, not for keeping electrical noise away from sensitive analog circuitry.\u003c\/p\u003e\u003cp\u003eThe FiiO Darkside Pro is a regulated linear power supply built to replace that stock adapter. It uses a 75W toroidal transformer, a fully discrete NMOS regulator circuit with dual IRFZ34NPBF MOSFETs and an LT431 voltage reference, and a switchable 12V\/15V output at up to 3A, aiming to deliver cleaner, more stable power than a typical switching adapter.\u003c\/p\u003e\u003cp\u003eA heavy-duty unibody aluminum chassis is designed to resist resonance and block EMI, with a 3-LED voltage display and a precision potentiometer for fine voltage adjustment.\u003c\/p\u003e\u003ch4\u003eSimcoe Audio Video Insight\u003c\/h4\u003e\u003cp\u003eBefore pairing the Darkside Pro with a specific FiiO component, confirm that device accepts 12V or 15V DC power through a GX16-2 connector — FiiO's own page doesn't publish a specific compatible-model list, so it's worth checking the target device's own power requirements rather than assuming compatibility from the category alone.\u003c\/p\u003e\u003ch3\u003eMore Info\u003c\/h3\u003e\u003ch4\u003eWhy the FiiO Darkside Pro Stands Out\u003c\/h4\u003e\u003cdiv class=\"more-info-box\"\u003e\n\u003ch5\u003e\u003cstrong\u003e75W Toroidal Transformer\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eA grain-oriented silicon steel core transformer is built for higher efficiency and reduced eddy currents.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"more-info-box\"\u003e\n\u003ch5\u003e\u003cstrong\u003eFully Discrete NMOS Regulator\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eDual IRFZ34NPBF MOSFETs and an LT431 voltage reference form a discrete regulation circuit aimed at low noise and fast transient response.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"more-info-box\"\u003e\n\u003ch5\u003e\u003cstrong\u003eSwitchable 12V\/15V Output at Up to 3A\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eA physical selector switch lets one power supply serve devices with either voltage requirement.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"more-info-box\"\u003e\n\u003ch5\u003e\u003cstrong\u003eUltra-Low Ripple\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eRated at 30µVrms (A-weighted) ripple, with a precision potentiometer for ±0.2V fine voltage calibration.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"more-info-box\"\u003e\n\u003ch5\u003e\u003cstrong\u003eHeavy-Duty Unibody Aluminum Chassis\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eBuilt to resist resonance and block EMI, with a 3-LED voltage display for at-a-glance monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch3\u003eBuyer's Guide\u003c\/h3\u003e\u003ch4\u003eWho It's For\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Desktop DAC\/Amp Owner\u003c\/strong\u003e: wants to replace a stock switching adapter with a cleaner linear power supply on a compatible 12V\/15V device.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Noise-Conscious Listener\u003c\/strong\u003e: wants lower ripple and a discrete regulator circuit feeding sensitive analog gear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe System Builder\u003c\/strong\u003e: wants one power supply that can serve either a 12V or 15V device via its selector switch.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eHow It Compares\u003c\/h4\u003e\u003cp\u003eThe Darkside Pro sits above the PL50 in FiiO's linear power supply lineup, with a larger 75W transformer and a fully discrete NMOS regulator design, compared to the PL50's 50W transformer and Texas Instruments regulator chip.\u003c\/p\u003e","brand":"FiiO","offers":[{"title":"Black","offer_id":48390530629853,"sku":"LM-KQXE-SKPI","price":249.99,"currency_code":"CAD","in_stock":false},{"title":"Silver","offer_id":48390530662621,"sku":"LM-GWMC-ZIHS","price":249.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0331\/1930\/5859\/files\/fiio-darkside-pro-regulated-linear-power-supply-black-front-angle-removebg-preview.png?v=1787081572","url":"https:\/\/www.simcoeav.ca\/products\/fiio-darkside-pro-linear-power-supply","provider":"Simcoe Audio Video","version":"1.0","type":"link"}