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

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

PRL-8421-C0

702725245376

Regular price $160.94 USD
Regular price Sale price $160.94 USD
Sale Sold out
Select Finish
Select Button Style

RATIOĀ® patented gear technology
RATIOĀ® - 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 RATIOĀ®, 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

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

It has a mini contemporary button.

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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.

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

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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: 0.910ā€ (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

UPGRADE TO PREMIUM PLATED INVISOMATCH View full details
5.0
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100%would recommend this product
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1 review
  • JF
    James F.
    Verified Buyer
    I recommend this product
    Rated 5 stars
    7 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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