{"product_id":"graph-tech-prl-8521-b7-4-3-electric-guitar-locking-machine-heads-black","title":"Graph Tech PRL-8521-B7 4+3 Electric Guitar Locking Machine Heads (Black)","description":"\u003cp\u003e\u003cspan\u003eA set of 7 string tuned locking ratio machine heads for electric guitar using a 4x3 configuration. It has a two-pin housing that can be used as is or with our patented InvisoMatch mounting plates. 4 different sets of brushed aluminum InvisoMatch mounting plates are included to make installation on most guitars quick and precise using your existing screw mounting holes. Ratio – Tuned tuners incorporate different string gauges into the tuning equation. From Low B to High E 48:1, 39:1, 24:1, 20:1, 35:1, 20:1, 12:1. We have balanced the gear ratios of each chain, which simplifies the process adjustment. With Ratio, a half turn is a half step! Each string reacts the same to any tuning adjustment. Predictable and precise tuning, on every string.\u003c\/span\u003e\u003c\/p\u003e","brand":"Graph Tech","offers":[{"title":"Default Title","offer_id":41688471437391,"sku":"PRL-8521-B7","price":230.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/9466\/9382\/files\/PRL-8521-B7_lg.jpg?v=1715715396","url":"https:\/\/shop.musicredone.com\/products\/graph-tech-prl-8521-b7-4-3-electric-guitar-locking-machine-heads-black","provider":"RedOne Music Canada","version":"1.0","type":"link"}