Ratio Electric Locking MusicMan 4x2 MiniCon Button (Select Finish) - Graph Tech Guitar Labs Ltd.
Ratio Electric Locking MusicMan 4x2 MiniCon Button (Select Finish) - Graph Tech Guitar Labs Ltd.
Ratio Electric Locking MusicMan 4x2 MiniCon Button (Select Finish) - Graph Tech Guitar Labs Ltd.

4+2 Ratio Electric Locking Machine Heads Mini Contemporary Button (PRL-8421, Select Finish)

PRL-8421-C0
5.0
Rated 5.0 stars
1 Review

Select Finish

SCIENCE BEHIND RATIO:

RATIO® patented gear technology
RATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation.

From Low E to High E 39:1, 24:1, 20:1, 35:1, 20:1, 12:1.

We balanced the gear ratios to each string simplifying the tuning process.

With RATIO®, a half turn is a semi-tone!

Every string reacts the same to any tuning adjustment. Predictable, precise tuning, on every string.

RATIO Machine Heads explanation video

 

Description:

The PRL-8421 is a right-handed set of Locking RATIO® Calibrated Machine Heads for a Music Man, or other 4 x 2 style headstock.

It has mini contemporary button.

 

It has a two pin casing that can be used as is, or with our Patented InvisoMatch Mounting Plates [opens in new tab].

4 different sets of InvisoMatch mounting plates in brushed aluminum are included to make installation on most guitars fast and accurate by using your existing screw mounting holes.

 

4x2 tuners set  Ratio Tuned Machine Heads: The New Standard In Tuning Technology

 

Specification:

Gear ratio: unique for each string position - one turn-one tone
Peg holes diameter required: 13/32" (10mm)
String post diameter: 0.236" (6mm)
String post length to string hole: 0.910” (23mm)
Weight per single machine head: 0.083lbs (38g)
Weight per set: 0.496lbs (225g)
String diameter up to 72 gauge
Includes 6 machine heads, mounting screws and bushings
Includes complimentary 4 sets of aluminum mounting plates

GUIDES:

Staggered Ratio Measurements.pdfRatio Installation Guide.pdfRatio Installation Guide Video

REVIEWS:

Moss Hart
 
 

Reviewed in the United States on February 15, 2020

Amazon Verified Purchase

 

5.0
Rated 5.0 stars
Based on 1 review
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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1 review
  • JF
    James F.
    Verified Buyer
    I recommend this product
    Rated 5 stars
    2 months ago
    Music Man Sterling Cutlass CT50

    They were a perfect fit for my Sterling Cutlass! Exactly what I wanted! I have Ratios on my Les Paul, so I really wanted these for my CT50.

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