{"id":9297707598057,"title":"Martin Era Treated Acoustic Guitar Strings Phosphor Bronze 11-52","handle":"martin-era-treated-acoustic-guitar-strings-phosphor-bronze-11-52","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBuilt to achieve unmatched tone and playability, Martin Era™ strings set a new standard for what a phosphor bronze acoustic guitar string can be. Combining the best technologies from the Martin Strings lineup, Martin Era strings feature a patented Lifespan® treatment to protect against corrosion, Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends—designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history. The Artist Light version was developed in collaboration with six-time GRAMMY® winner Jason Isbell and features a more traditional SP® core to match his signature guitar sound.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eGauges: .011, .015, .023, .032, .042, .052\u003cbr\u003e\u003c\/p\u003e","published_at":"2026-06-01T14:19:22-04:00","created_at":"2026-06-01T13:47:57-04:00","vendor":"Martin","type":"Acoustic Guitar Strings","tags":["13-56","729789708074","Acoustic Guitar Strings","Guitar Strings","MA550T","Martin Strings","Phosphor Bronze","Strings"],"price":1799,"price_min":1799,"price_max":1799,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":51139234201833,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"MP535T","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Martin Era Treated Acoustic Guitar Strings Phosphor Bronze 11-52","public_title":null,"options":["Default Title"],"price":1799,"weight":85,"compare_at_price":null,"inventory_quantity":10,"inventory_management":"shopify","inventory_policy":"deny","barcode":"729789708074","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/megatonemusic.com\/cdn\/shop\/files\/Martin-Strings-MP535T-Acoustic-GuitarStrings-11-52-Image-1.jpg?v=1780337885","\/\/megatonemusic.com\/cdn\/shop\/files\/Martin-Strings-MP535T-Acoustic-GuitarStrings-11-52-Image-2.jpg?v=1780337886"],"featured_image":"\/\/megatonemusic.com\/cdn\/shop\/files\/Martin-Strings-MP535T-Acoustic-GuitarStrings-11-52-Image-1.jpg?v=1780337885","options":["Title"],"media":[{"alt":null,"id":39870971216105,"position":1,"preview_image":{"aspect_ratio":1.319,"height":2790,"width":3681,"src":"\/\/megatonemusic.com\/cdn\/shop\/files\/Martin-Strings-MP535T-Acoustic-GuitarStrings-11-52-Image-1.jpg?v=1780337885"},"aspect_ratio":1.319,"height":2790,"media_type":"image","src":"\/\/megatonemusic.com\/cdn\/shop\/files\/Martin-Strings-MP535T-Acoustic-GuitarStrings-11-52-Image-1.jpg?v=1780337885","width":3681},{"alt":null,"id":39870971248873,"position":2,"preview_image":{"aspect_ratio":1.319,"height":2790,"width":3681,"src":"\/\/megatonemusic.com\/cdn\/shop\/files\/Martin-Strings-MP535T-Acoustic-GuitarStrings-11-52-Image-2.jpg?v=1780337886"},"aspect_ratio":1.319,"height":2790,"media_type":"image","src":"\/\/megatonemusic.com\/cdn\/shop\/files\/Martin-Strings-MP535T-Acoustic-GuitarStrings-11-52-Image-2.jpg?v=1780337886","width":3681}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBuilt to achieve unmatched tone and playability, Martin Era™ strings set a new standard for what a phosphor bronze acoustic guitar string can be. Combining the best technologies from the Martin Strings lineup, Martin Era strings feature a patented Lifespan® treatment to protect against corrosion, Flexible Core construction to enhance fretability and comfort, and silk-wrapped ball ends—designed with vintage instruments in mind and as a premium touch that symbolizes Martin’s handcrafted string-making history. The Artist Light version was developed in collaboration with six-time GRAMMY® winner Jason Isbell and features a more traditional SP® core to match his signature guitar sound.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eGauges: .011, .015, .023, .032, .042, .052\u003cbr\u003e\u003c\/p\u003e"}