{"title":"Isolamento - splitting - bilanciato","description":"","products":[{"product_id":"ll1591-lundahl-trasformatore-d-isolamento","title":"LL1591 Lundahl trasformatore d'isolamento","description":"\u003cp\u003eLL1591 is a low cost audio isolation transformer, pin compatible with e.g. LL1527 and LL1581XL. The purpose with LL1591 is to provide a low cost solution, when noise rejection requirements are small. The LL1591 does not have internal faraday shields, nor mu metal housing.\u003c\/p\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628946538881,"sku":null,"price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27915.jpg?v=1777985431"},{"product_id":"ll1527a-lundahl-trasformatore-d-isolamento","title":"LL1527A Lundahl trasformatore d'isolamento","description":"\u003cp\u003eLL1527A is a special split version of our classical microphone transformer LL1527, where the shields of the two coils are available on separate pins. This facilitates building of e.g. split boxes with galvanically isolated shields. The LL1527 is built-up from two coils, each with one primary and one secondary winding separated by an electrostatic shield. Each shield is connected to a separate pin. The core is a high permeability mu-metal core and the transformer is housed in a mu-metal can.\u003c\/p\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628946571649,"sku":null,"price":83.4,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27914.jpg?v=1777985438"},{"product_id":"ll1527xl-lundahl-trasformatore-d-isolamento","title":"LL1527XL Lundahl trasformatore d'isolamento","description":"\u003cp\u003eLL1527 is a truly general purpose transformer for microphone or line input, for output, for splitting 1 direct + 1 isolated and for galvanic isolation of units. LL1527 has been generally accepted by the audio industry as the general purpose audio transformer. The LL1527 is built-up from two coils, each with one primary and one secondary winding separated by an electrostatic shield. The core is a high permeability mu metal core. The transformer is housed in a mu-metal can. In the LL1527XL, the core is about 45% larger than in the LL1527, resulting in a higher signal level capability.\u003c\/p\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628946833793,"sku":null,"price":98.38,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27913.jpg?v=1777985447"},{"product_id":"ll1532-lundahl-trasformatore-d-isolamento","title":"LL1532 Lundahl trasformatore d'isolamento","description":"\u003cp\u003eLL1532 and LL1593 are small size medium impedance transformers suitable for splitting and other general purpose applications. LL1532 consists of two coils each with one primary and one secondary winding separated by an electrostatic (Faraday) shield. The two secondary windings are internally connected in series. The core is a high permeability mu-metal core. The LL1532 is magnetically shielded by a mu-metal housing. LL1593 is a low-cost version of the LL1532, with the same winding structure but without Faraday shields and mu-metal housing. The LL1532 and LL1592 can be used with primaries in series for 1:1 or in parallel for 1:2 turns ratio.\u003c\/p\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628947292545,"sku":null,"price":75.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27912.jpg?v=1777985458"},{"product_id":"ll1570-lundahl-trasformatore-d-isolamento","title":"LL1570 Lundahl trasformatore d'isolamento","description":"\u003cp\u003eThe LL1570 is a very high quality general purpose audio transformer for low turns ratio mic input, for ground isolation, balanced-to-unbalanced convertion and for splitting 1:1+1. By careful design, the capacative coupling between the different parts of the transformer is kept to a minimum. The three-section winding structure used in the LL1570 results in a very high bandwidth. The transformer is built up from two coils, each with primary and secondary windings separated by electrostatic shields, and a high permeability mu-metal core. In the LL1570XL, the core is about 45% larger than in the LL1570, resulting in a high signal level capability.\u003c\/p\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628947882369,"sku":null,"price":84.8,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27911.jpg?v=1777985465"},{"product_id":"ll1570xl-lundahl-trasformatore-d-isolamento","title":"LL1570XL Lundahl trasformatore d'isolamento","description":"\u003cp\u003eThe LL1570 is a very high quality general purpose audio transformer for low turns ratio mic input, for ground isolation, balanced-to-unbalanced convertion and for splitting 1:1+1. By careful design, the capacative coupling between the different parts of the transformer is kept to a minimum. The three-section winding structure used in the LL1570 results in a very high bandwidth. The transformer is built up from two coils, each with primary and secondary windings separated by electrostatic shields, and a high permeability mu-metal core. In the LL1570XL, the core is about 45% larger than in the LL1570, resulting in a high signal level capability.\u003c\/p\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628947915137,"sku":null,"price":99.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27910.jpg?v=1777985474"},{"product_id":"ll1588-lundahl-trasformatore-d-isolamento","title":"LL1588 Lundahl trasformatore d'isolamento","description":"\u003cp\u003eLL1588 is a high-level general-purpose transformer which can be used for microphone or line input, for line output and for galvanic isolation. The windings are arranged to give perfect symmetry if the transformer is used in phase splitting input applications. The two coils structure also greatly improves immunity to external magnetic fields from e.g. power supplies and motors. Primary and secondary windings are separated by electrostatic shields. The core is a high permeability mu metal core. The transformer is housed in a mu-metal can.\u003c\/p\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628947980673,"sku":null,"price":119.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27909.jpg?v=1777985483"},{"product_id":"ll1593-lundahl-trasformatore-d-isolamento","title":"LL1593 Lundahl trasformatore d'isolamento","description":"\u003cp\u003eLL1532 and LL1593 are small size medium impedance transformers suitable for splitting and other general purpose applications. LL1532 consists of two coils each with one primary and one secondary winding separated by an electrostatic (Faraday) shield. The two secondary windings are internally connected in series. The core is a high permeability mu-metal core. The LL1532 is magnetically shielded by a mu-metal housing. LL1593 is a low-cost version of the LL1532, with the same winding structure but without Faraday shields and mu-metal housing. The LL1532 and LL1592 can be used with primaries in series for 1:1 or in parallel for 1:2 turns ratio\u003c\/p\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628948046209,"sku":null,"price":47.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27908.jpg?v=1777985493"},{"product_id":"ll1527-lundahl-trasformatore-d-isolamento","title":"LL1527 Lundahl trasformatore d'isolamento","description":"\u003cp\u003eLL1527 is a truly general purpose transformer for microphone or line input, for output, for splitting 1 direct + 1 isolated and for galvanic isolation of units. LL1527 has been generally accepted by the audio industry as the general purpose audio transformer. The LL1527 is built-up from two coils, each with one primary and one secondary winding separated by an electrostatic shield. The core is a high permeability mu metal core. The transformer is housed in a mu-metal can. In the LL1527XL, the core is about 45% larger than in the LL1527, resulting in a higher signal level capability\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003ch3 style=\"font-family:Poppins, sans-serif;font-weight:500;line-height:1.2;font-size:36px;background-color:#ffffff;\"\u003eLL1527, one of our oldest audio transformer designs, is still in production and still very popular. Many sound engineers have a couple of LL1527 laying around to be used when problem arises. Frequently engineers tell us: “I had some hum in my system, but as soon as I installed one of your magic LL1527, the system was dead quiet…”\u003cbr\u003eDue to an excellent bandwidth, a reasonably low copper resistance and a high signal level capability, the LL1527 can be used both in input and output applications with no sound degradation. The LL1527 will break up ground loops, convert balanced to unbalanced and unbalanced to balanced systems.\u003c\/h3\u003e\n\u003ch3 style=\"font-family:Poppins, sans-serif;font-weight:500;line-height:1.2;font-size:36px;background-color:#ffffff;\"\u003e\n\u003cimg class=\"wp-image-2315 size-full aligncenter\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/1527_2-01_e6b15ba8-f913-4a82-a143-b31f1ca2ff2f.png?v=1777985503\" alt=\"1527_2-01\" width=\"952\" height=\"313\" style=\"height:auto;border:none;clear:both;margin-left:auto;margin-right:auto;\"\u003e\u003cem\u003e                                                            Balanced-to-unbalanced conversion\u003c\/em\u003e\n\u003c\/h3\u003e\n\u003cp style=\"color:#333333;font-family:Poppins, sans-serif;font-size:16px;background-color:#ffffff;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"font-family:Poppins, sans-serif;font-weight:500;line-height:1.2;font-size:36px;background-color:#ffffff;text-align:justify;\"\u003e\n\u003cimg class=\"wp-image-2316 size-full aligncenter\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/1527_3-01_2e8b8e59-4f20-467e-bdd5-775162296085.png?v=1777985504\" alt=\"1527_3-01\" width=\"997\" height=\"333\" style=\"height:auto;border:none;clear:both;margin-left:auto;margin-right:auto;\"\u003e\u003cem\u003e                                                    Unbalanced-to-balanced conversion\u003c\/em\u003e\n\u003c\/h3\u003e\n\u003ch3 style=\"font-family:Poppins, sans-serif;font-weight:500;line-height:1.2;font-size:36px;background-color:#ffffff;text-align:center;\"\u003e\u003c\/h3\u003e\n\u003cp style=\"color:#333333;font-family:Poppins, sans-serif;font-size:16px;background-color:#ffffff;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"font-family:Poppins, sans-serif;font-weight:500;line-height:1.2;font-size:36px;background-color:#ffffff;\"\u003eIt is also suitable for splitting 1 direct + 1 isolated:\u003c\/h3\u003e\n\u003cp style=\"color:#333333;font-family:Poppins, sans-serif;font-size:16px;background-color:#ffffff;\"\u003e\u003cimg class=\"wp-image-2317 aligncenter\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/1527-01_9a58c000-013a-48c9-bfab-16b2f066890c.png?v=1777985507\" alt=\"1527-01\" width=\"563\" height=\"700\" style=\"height:auto;border:none;clear:both;margin-left:auto;margin-right:auto;\"\u003e\u003c\/p\u003e\n\u003ch3 style=\"font-family:Poppins, sans-serif;font-weight:500;line-height:1.2;font-size:36px;background-color:#ffffff;text-align:center;\"\u003e\u003cem\u003eSplitting 1 direct + 1 isolated\u003c\/em\u003e\u003c\/h3\u003e\n\u003ch3 style=\"font-family:Poppins, sans-serif;font-weight:500;line-height:1.2;font-size:36px;background-color:#ffffff;\"\u003e\u003c\/h3\u003e\n\u003cp style=\"color:#333333;font-family:Poppins, sans-serif;font-size:16px;background-color:#ffffff;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"font-family:Poppins, sans-serif;font-weight:500;line-height:1.2;font-size:36px;background-color:#ffffff;\"\u003eLL1527 is not suitable for splitting 1 direct + 2 isolated, as it in this configuration may pick up magnetic noise from mains transformers and electrical motors. For this application we normally suggest the LL1581XL.\u003c\/h3\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628948242817,"sku":null,"price":83.4,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27906.jpg?v=1777985509"},{"product_id":"ll7902-lundahl-trasformatore-d-isolamento","title":"LL7902 Lundahl trasformatore d'isolamento","description":"\u003cp\u003eLL7901 and LL7902 are large size, high level, high performance audio transformers, made for extraordinary requirements. The LL7901 has an extreme level capability ( + 34 dBU @ 50 Hz) while the LL7902 combines high level capability (+28 dBU @ 50 Hz) with low copper resistance. The transformer consists of two coils each with two primary and two secondary windings separated by electrostatic shields. The core is a high permeability mu metal lamination core. The transformers are magnetically shielded by a mu metal case.\u003c\/p\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628948504961,"sku":null,"price":172.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27905.jpg?v=1777985516"},{"product_id":"ll1581xl-lundahl-trasformatore-splitter","title":"LL1581XL Lundahl trasformatore splitter","description":"\u003cp\u003eIn many splitting applications, the splitting transformer must have a high immunity to input common mode signals, to stray magnetic fields from e.g. power transformers and to large ground potential differences in receiving systems. The LL1581XL is developed to handle those types of problems. When designing the LL1581, we have used our well established two coil structure to create a transformer with a high degree of symmetry. The transformer is built up from two primary windings (which should be used in parallel) and two secondary windings. Each secondary winding is built up from two sections, one from each coil. Its own electrostatic shields surround each secondary section. The symmetric structure results in an internal cancellation of noise signals caused by external magnetic field. It also increase immunity to ground noise between secondary systems and reduces the effects of input common mode signals. The transformer is housed in a mu-metal can and is impregnated in solventless epoxy resin.\u003c\/p\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628949356929,"sku":null,"price":116.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27904.jpg?v=1777985522"},{"product_id":"ll1583-lundahl-trasformatore-splitter","title":"LL1583 Lundahl trasformatore splitter","description":"\u003cp\u003eIn many splitting applications, the splitting transformer must have a high immunity to input common mode signals, to stray magnetic fields from e.g. power transformers and to large ground potential differences in receiving systems. In the design of the LL1583, we have used our well established two coil structure to create a transformer with a high degree of symmetry. The transformer is built up from two primary windings (which should be used in parallel) and two secondary windings. Each secondary winding is built up from two sections, one from each coil. Its own electrostatic shields surround each secondary section. The symmetric structure results in an internal cancellation of noise signals caused by external magnetic field. It also increases immunity to ground noise between secondary systems and reduces the effects of input common mode signals. The transformer is housed in a mu-metal can and is impregnated in solventless epoxy resin.\u003c\/p\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628949815681,"sku":null,"price":90.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27903.jpg?v=1777985529"},{"product_id":"ll1590-lundahl-trasformatore-splitter","title":"LL1590 Lundahl trasformatore splitter","description":"\u003cp\u003eIn many splitting applications, the splitting transformer must have a high immunity to input common mode signals, to stray magnetic fields from e.g. power transformers and to large ground potential differences in receiving systems. The LL1590 is developed to handle those types of problems. When designing the LL1590, we have used our well established two coil structure to create a transformer with a high degree of symmetry. The primary winding consists of four sections, two on each coil, connected in parallel. The three secondary windings consists each of two sections, one from each coil, separated from the primary sections by electrostatic shields. The symmetric structure results in an internal cancellation of noise signals caused by external magnetic field. It also increase immunity to ground noise between secondary systems and reduces the effects of input common mode signals. The transformer is housed in a mu-metal can and is impregnated in epoxy resin.\u003c\/p\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628950143361,"sku":null,"price":172.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27902.jpg?v=1777985538"},{"product_id":"ll7904-lundahl-trasformatore-splitter","title":"LL7904 Lundahl trasformatore splitter","description":"\u003cp\u003eIn many splitting applications, the splitting transformer must have a high immunity to input common mode signals, to stray magnetic fields from e.g. power transformers and to large ground potential differences in receiving systems. The LL7904 is developed to handle those types of problems. When designing the LL7904, we have used our wellestablished two-coil structure to create a transformer with a high degree of symmetry. The transformer is built up from two primary windings (which should be used in parallel) and two secondary windings. Each secondary winding is built up from two sections, one from each coil and is surrounded by it own electrostatic shields. The symmetric structure results in an internal cancellation of noise signals caused by external magnetic field (humbucking). It also increases immunity to ground noise between secondary systems and reduces the effects of input common mode signals. The transformer is housed in a mu-metal can and is impregnated in solventless epoxy resin.\u003c\/p\u003e","brand":"Lundahl","offers":[{"title":"Default Title","offer_id":55628951060865,"sku":null,"price":184.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/files\/27901.jpg?v=1777985546"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9630\/7329\/collections\/32013.jpg?v=1773154912","url":"https:\/\/www.audiokit.it\/collections\/isolamento-splitting-bilanciato.oembed","provider":"AudioKit","version":"1.0","type":"link"}