Item #: GRA PRL8721 LIST

Graph Tech Ratio Locking Electric Guitar Tuners 6 In-Line

Shop Graph Tech Ratio Locking Electric Guitar Tuners 6 In-Line from AMS with 0% Interest Payment Plans and Free Shipping.

3 Payments of $39.66
$107.95 - $131.71

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Product Description

The PRL-8721 Ratio Tuned Machine Heads are the first and only machine head to incorporate the different string gauges into the tuning equation. The gear ratios range from 12:1 to 39:1, specific to the relative core size of the string being spun on each, resulting in a consistent response across all strings. One half turn is a semi-tone; one turn is a tone.

Installation is unprecedentedly simple, as each set of Ratios comes with four full sets of Invisomatch mounting plates. In most cases, whatever the current hole profile under the old tuners - one or two screws, 45 degree, 90 degree, etc - one need only position the appropriate plate between the tuner and headstock, utilizing the existing screw holes with no drilling or filling required.

The PRL-8721-C0 is a set of Ratio Locking Tuned Machine Heads for an electric guitar that uses six in line tuners. It has a contemporary mini shaped button, has a two pin casing and is finished in chrome or gold.

Includes InvisoMatch Standard Mounting Plates for easy installation. Fits most headstocks.

See all items from Graph Tech Guitar Labs
Helpful Info about the Manufacturer
Phone:  800-388-7011 Warranty: 

Product Specifications

Customer Reviews

Edward Andrews, gitrman1@yahoo.com Submitted: 11/1/2018
Product Rating
verified
Subject
Super precise machine heads
Product Rating
What is your opinion of this product?
I'm a 'stickler' for being in, and Staying in tune when playing my guitar and have been since I first started playing in bands way back in 1974. The first thing that I normally do is replace the machine heads on any new guitar that I buy. Over the years I've replaced stock 'tuners' on dozens of guitars, including Les Pauls, Stratocasters, Teles, Ibanezes, etc... When I got my new Fender American Professional Strat last year, it was no different, the stock tuners were 'ok', but not quite up to my satisfaction. I typically buy Sperzel locking machine heads, or Grovers, but I'm Always on the lookout for something 'newer and better'. Well, I can say without hesitation that these Graphtech Ratio machine heads are 'Better' than any I've ever had! The low E has a 39:1 ratio making it easier than Ever to achieve the perfect tune without all the up and down usually encountered when tuning. You can very precisely tune up to pitch without going sharp! Each string has a ratio that is catered to the basic diameter of the string. I'm going to get another set for my 'Chris Shiflett' Telecaster Deluxe that I purchased from AMS last month!!! I highly recommend these machine heads!
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Jeff Fleming, jefffleming2014@gmail.com Submitted: 8/23/2018
Product Rating
verified
Subject
Don't hesitate to pull the trigger
What is your opinion of this product?
Building my version of a Fender Custom Shop Stratocaster and wanting to use the finest I looked to this item as being the very best. Not often we see new innovations in guitar tuners however these Graph Tech Ratio Tuners deliver. The aesthetics are impressive and the included universal mounting brackets are a nice addition also. The true worth however is the design innovation of allowing each strings ratio matched to its core diameter making tuning quicker and more precise. Although on the pricey side they compare price wise to other elite models and do more. I am very impressed as are my gear head friends. You will be too.
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HOLMES DWAYNE Submitted: 2/27/2018
Product Rating
verified
Subject
Awesome!
What is your opinion of this product?
Works great!!
AMS Responds:
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