{"product_id":"silentangellfsp","title":"Silent Angel LF-SP Network Filter","description":"\u003cp\u003eThe Silent Angel LF-SP is a passive network filter that clears the Ethernet signal between switch and streamer of interference.\u003c\/p\u003e\n\u003cp\u003eSometimes the most effective component is the one that does nothing at all, except create calm. The LF-SP works completely unpowered and sits as the final filter stage right in front of your streamer.\u003c\/p\u003e\n\u003ch2\u003eWhy the LF-SP?\u003c\/h2\u003e\n\u003cp\u003eInterference builds up on the last stretch of network before your system that no datasheet shows, but every good ear hears.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassive and unpowered:\u003c\/strong\u003e The LF-SP needs no power supply and therefore introduces no interference source of its own. It only filters, instead of adding its own clocking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduces ground loops and EMI:\u003c\/strong\u003e It dampens ground-loop effects and electromagnetic interference as well as noise carried over from your home network.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal stage before the streamer:\u003c\/strong\u003e Placed between switch and playback device, it refines the signal right before it counts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimplest integration:\u003c\/strong\u003e Plug in, done. No app, no configuration, no power supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat you hear\u003c\/h2\u003e\n\u003cp\u003eThe effect is fine polish: a slightly blacker background, calmer voices, and a touch more order in the sound. It's easiest to notice on an already clean streaming chain, especially with calm, high-resolution recordings.\u003c\/p\u003e\n\u003ch3\u003eWho is the LF-SP for?\u003c\/h3\u003e\n\u003cp\u003eThe LF-SP is for anyone who already takes their network audio seriously and wants to optimize the final stage. \u003cstrong\u003eBottom line:\u003c\/strong\u003e if you only listen occasionally over Bluetooth, you won't notice much. In a chain with a good streamer and audio switch, it's an affordable, sensible finishing touch.\u003c\/p\u003e\n\u003ch2\u003eOur verdict\u003c\/h2\u003e\n\u003cp\u003eA small, passive component with a clear job, picking up exactly where active components leave off. Whether the LF-SP brings the last bit of calm to your chain is something we'll assess honestly with you at HD Zürisee in Wädenswil.\u003c\/p\u003e\n\u003ch2\u003eTechnical data\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePrinciple: passive, unpowered network filter (inline)\u003c\/li\u003e\n\u003cli\u003eConnection: 2 × RJ-45 (Ethernet), between switch and streamer\u003c\/li\u003e\n\u003cli\u003eData rate: up to 2.5 GbE (2500\/1000\/100\/10 Mbps, auto-negotiation)\u003c\/li\u003e\n\u003cli\u003eFunction: reduction of ground-loop and EMI interference as well as carried-over noise\u003c\/li\u003e\n\u003cli\u003ePower supply: none required\u003c\/li\u003e\n\u003cli\u003eDimensions (W × H × D): 108 × 32 × 26 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eDoes the LF-SP need a power supply?\u003c\/h3\u003e\n\u003cp\u003eNo. The LF-SP is a passive, unpowered filter. You simply place it in the network run between switch and streamer, it needs no power, and so it introduces no interference source of its own. Plugging it in is enough.\u003c\/p\u003e\n\u003ch3\u003eWhere's the best place to put the LF-SP?\u003c\/h3\u003e\n\u003cp\u003eAs close as possible to the playback device, ideally right in front of the streamer. That's where it filters out the last carried-over interference and ground-loop effects before the signal reaches the sensitive audio electronics.\u003c\/p\u003e\n\u003ch3\u003eDoes the LF-SP replace an audio switch?\u003c\/h3\u003e\n\u003cp\u003eNo, it complements one. A switch like the Bonn N8 actively clocks and separates the signal, while the LF-SP filters passively as the last stage before it. You get the most out of it when both work together.\u003c\/p\u003e\n\u003ch3\u003eWhy buy the LF-SP from HD Zürisee?\u003c\/h3\u003e\n\u003cp\u003eBecause network audio lives from how components interact, and we'll tell you honestly where a passive filter helps in your chain. Here in Wädenswil, we assess it with the whole system in mind, instead of just selling you a part.\u003c\/p\u003e\n\u003ch2\u003eGoes well with\u003c\/h2\u003e\n\u003cp\u003eThe LF-SP performs best in a clean network chain. Discover the world of \u003ca href=\"\/en-ch\/collections\/silent-angel\"\u003eSilent Angel\u003c\/a\u003e, the matching \u003ca href=\"\/en-ch\/collections\/netzwerk-switch\"\u003enetwork switch\u003c\/a\u003e, and high-quality \u003ca href=\"\/en-ch\/collections\/netzwerkkabel\"\u003enetwork cables\u003c\/a\u003e.\u003c\/p\u003e","brand":"Silent Angel","offers":[{"title":"Default Title","offer_id":53310009901392,"sku":null,"price":419.0,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0932\/3262\/8048\/files\/silent-angel-lf-sp-netzwerkfilter-frontansicht.png?v=1786698371","url":"https:\/\/hdzuerisee.ch\/en-ch\/products\/silentangellfsp","provider":"HD Zürisee AG","version":"1.0","type":"link"}