4 String 2+2 Bass Ratio Y-Style Button (PRB-4220, Select Finish)
4 String 2+2 Bass Ratio Y-Style Button (PRB-4220, Select Finish)
PRB-4220-C0
702725245178
Powered by TrieveRATIO® patented gear technology
RATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation.
From Low E to G - 36:1, 30:1, 20:1, 18:1.
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.
The PRB-4220 is a right-handed set of RATIO® Calibrated Machine Heads for BASS that use a 2 x 2 configuration.
In order to achieve higher gear ratios, Ratio are the world's first machine heads using a double envelope gear design with a hardened steel gear. Amazingly smooth and super strong.
Gear ratio: unique for each string position - one turn-one tone
Peg holes diameter required: 35/64" (14mm)
String post diameter: 0.547" (13.9mm)
String post length to string hole: 1.030” (26.1mm)
Weight per single machine head: 1.86oz (53g)
Weight per set of four: 7.44oz (212g)
String diameter up to 0.98 gauge (or larger if taper-wound)
Includes 4 machine heads, mounting screws, and bushings
- MLMichel L.Verified BuyerI recommend this productRated 5 out of 5 stars5 days agoWorth it
made a huge difference on the bottom strings of my electric. I was use to see the tuning change by looking at the pegs :-)
- SNSteven N.Verified BuyerI recommend this productRated 5 out of 5 stars5 days agoRatio tuners
smooth action , no lag. I put them on my Martins
- KWKristian W.Verified BuyerI recommend this productRated 5 out of 5 stars1 week agoGreat tuners
A bit expensive compared to competitors, but absolutely worth the extra money.
The only downside for me, was that the connection plates didn't match my original Kluson Waffle back.
- MCMarty C.Verified BuyerI recommend this productRated 5 out of 5 stars1 week agoLove These Tuners!
I have Graphtech tuners on my three guitars! They are the best of the best, in my opinion! These machine heads keep me in tune better than any tuners I’ve ever used! Worth every penny if playing in tune is a non-negotiable requisite for your playing satisfaction!
- JYJamie Y.Verified BuyerI recommend this productRated 5 out of 5 stars2 weeks agoBest ever
I put these on my acoustic and they feel very premium.
