{"product_id":"east-sound-research-carl-martin-guitar-tuner","title":"East Sound Research Carl Martin GUITAR TUNER","description":"East Sound Research Carl Martin GUITAR TUNER. Features: Bright, clear display readable from standing position with switchable standard readout or strobe mode for precise tuning in any lighting condition.\nMute switch enables silent tuning without sending signal to amplifier, perfect for live performance and seamless tuning between songs.\nCalibration range from 437Hz to 443Hz (standard 440Hz) accommodates different tuning standards and playing situations requiring alternate reference pitches.\nTrue bypass ensures clean signal path when pedal is disengaged, maintaining tone integrity with zero signal degradation or coloration.\nBuilt in Carl Martin's classic cast black enclosure designed to withstand harsh handling and road abuse, powered by 9V battery or external power supply (not included).","brand":"EAST SOUND RESEARCH","offers":[{"title":"Default Title","offer_id":48593965547765,"sku":"ESR:CM0214","price":218.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1221\/0228\/files\/medium_729326a4-52a2-40cf-a47d-a7c8d84ac1c8.jpg?v=1786746089","url":"https:\/\/www.audiotopia.com\/products\/east-sound-research-carl-martin-guitar-tuner","provider":"AudioTopia","version":"1.0","type":"link"}