{"product_id":"rf-stop-filter","title":"RF•STOP LRC DC","description":"\u003cp\u003eA DAC and its connected power and input signal components require ultra-low noise for best sound. This cannot be overstated.\u003c\/p\u003e\n\u003cp\u003eFor DACs with a DC input:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplace the factory provided (external brick) switch-mode supply with a compatible 3rd party linear PSU with better regulation and filtering. Look for p\u003cspan\u003eower supplies with upgraded fuses or improved wiring to further add benefit of additional RF filtering.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eFor best performance, use a battery to \u003cspan\u003eavoid galvanic contact with AC mains and other AC connected components. Consider \u003c\/span\u003e\u003cspan\u003eLiFePO₄ (LFP) technology for the lowest electrochemical discharge noise and low EMI \u003c\/span\u003eBMS (battery management system) such as 'DALY\u003cspan\u003e' brand.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAvoid \u003c\/span\u003e\u003cspan\u003ebuck-type voltage regulators or integrated digital logic modules in the battery or power supply; these only add RF noise.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eRF•STOP™ LRC DC is a two-stage inductor-resistor-capacitor (LRC) filter design that uses inductors of highly permeable core material for excellent attenuation of common-mode and normal-mode noise up to the critical RF frequency of 500MHz. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1552\/8145\/files\/StandardChoke_SkinSchematic.jpg?v=1687103138\" alt=\"\" width=\"583\" height=\"182\"\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp\u003eFilter Performance:\u003cbr\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 34.8533%;\"\u003eSTANDARD\u003c\/td\u003e\n\u003ctd style=\"width: 62.1467%;\"\u003e1X (Single) filter performance\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 34.8533%;\"\u003eEXTREME\u003c\/td\u003e\n\u003ctd style=\"width: 62.1467%;\"\u003e3X (Triple) filter performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eSingle filter version has a maximum current rating of 4A. Extreme filter version has a maximum current rating of 1A.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNormally RF•STOP is located between the power source and DC input to a component, however RF•STOP can also be used to isolate c\u003c\/span\u003e\u003cspan\u003eomponents that are powered by the same DC power source (via a splitter cable). Installing RF•STOP between two component prevents transfer of RF noise between them. Additionally RF•STOP may be used to ensure that a galvanic digital signal input (dual coax) from OPTO•DX or source is properly filtered.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUse 2.1mm or 2.5mm connections for input and output and a well shielded DC power cable such as Gotham GAC-4\/1 11301 UltraPro Star Quad. Avoid long cable runs to minimize EMF induced noise via antenna effects; ideally locate RF•STOP close to the component and use ultra-short cables (0.3 meter or 12 inches).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"AudioWise","offers":[{"title":"STANDARD \/ 5.5 x 2.1mm \/ 5.5 x 2.1mm","offer_id":44774865240106,"sku":null,"price":200.0,"currency_code":"USD","in_stock":true},{"title":"STANDARD \/ 5.5 x 2.1mm \/ 5.5 x 2.5mm","offer_id":44774865272874,"sku":null,"price":200.0,"currency_code":"USD","in_stock":true},{"title":"STANDARD \/ 5.5 x 2.5mm \/ 5.5 x 2.1mm","offer_id":44774865305642,"sku":null,"price":200.0,"currency_code":"USD","in_stock":true},{"title":"STANDARD \/ 5.5 x 2.5mm \/ 5.5 x 2.5mm","offer_id":44774865338410,"sku":null,"price":200.0,"currency_code":"USD","in_stock":true},{"title":"EXTREME \/ 5.5 x 2.1mm \/ 5.5 x 2.1mm","offer_id":44774865371178,"sku":null,"price":325.0,"currency_code":"USD","in_stock":true},{"title":"EXTREME \/ 5.5 x 2.1mm \/ 5.5 x 2.5mm","offer_id":44774865403946,"sku":null,"price":325.0,"currency_code":"USD","in_stock":true},{"title":"EXTREME \/ 5.5 x 2.5mm \/ 5.5 x 2.1mm","offer_id":44774865436714,"sku":null,"price":325.0,"currency_code":"USD","in_stock":true},{"title":"EXTREME \/ 5.5 x 2.5mm \/ 5.5 x 2.5mm","offer_id":44774865469482,"sku":null,"price":325.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/2732\/4458\/files\/IMG_7599.jpg?v=1788319186","url":"https:\/\/extremeoutfitterspro.com\/products\/rf-stop-filter","provider":"My Store","version":"1.0","type":"link"}