Based on more than 21,240 customer reviews

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome

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Recommended price £118 -8%
£108 incl. 20% VAT
Online stock status:
Fast delivery within approx. 4 business days
In stock at supplier
See also (2)

Graph Tech PRB 4220 B0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Black

Online stock status:
Fast delivery within approx. 4 business days
Recommended price £118
£99
Sustainable product not specified
Number of mechanisms 4
Mechanism configuration 2 left + 2 right
Ratio multiple
Mechanism finish black
Mechanism type closed
Mechanism shape Y-style / lollipop

Graph Tech PRB 4220 G0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Gold

Online stock status:
Fast delivery within approx. 4 business days
Recommended price £134
£122
Sustainable product not specified
Number of mechanisms 4
Mechanism configuration 2 left + 2 right
Ratio multiple
Mechanism finish gold
Mechanism type closed
Mechanism shape Y-style / lollipop
Package deal
  • Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome +
  • D'Addario HDS Guitar Head Stand

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads + D'Addario HDS

  • Recommended price £121.90
  • You save £0.90
  • Now as combination for £121
  • Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome +
  • D'Addario PW-MPC Microfibre Polish Cloth

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads + D'Addario PW-MPC

  • Recommended price £116.70
  • You save £0.70
  • Now as combination for £116
Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome
Product no: 9000-0143-7324 Bax Music Warranty: This product comes with a manufacturing defects warranty.

General

Graph Tech PRB-4220-C0 Ratio tuning machines are specially designed for 4-string basses with a 2L/2R configuration. Thanks to the unique Ratio technology, each string gets its own transmission, making tuning more accurate and consistent. So you always achieve exactly one whole tone with one stroke, regardless of the string. The closed construction ensures durability, while the Y-Style knobs and chrome finish offer a modern look. With solid build quality and precise tuning, this is the perfect upgrade for any bass player who wants more stability and ease of tuning.

Specifications

Product features

Sustainable product not specified
Number of mechanisms 4
Mechanism configuration 2 left + 2 right
Ratio multiple
Mechanism finish chrome
Mechanism type closed
Mechanism shape Y-style / lollipop

Weight and dimensions including packaging

Weight (incl. packaging) 200 gr
Dimensions (incl. packaging) 20,0 x 9,0 x 5,0 cm

Product specifications

  • suitable for: 4-string bass guitar (2L/2R)
  • Brand: Graph Tech
  • model: PRB-4220-C0
  • construction: closed
  • ratio: E - 36:1, A - 30:1, D - 20:1, G - 18:1
  • quantity: 4 pieces (2 left, 2 right)
  • button type: Y-Style Contemporary button
  • finishing: chrome
  • shaft diameter without bushing: 8.9 mm (0.350")
  • mounting hole with bushing: 13.9 mm (0.547")
  • weight per tuning mechanism: approx. 52.62 g (0.116 lbs)

There are no reviews for this product yet.

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Package deal

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads + D'Addario HDS

Product no: 9000-0143-7331
  • Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome +
  • D'Addario HDS Guitar Head Stand
  • Recommended price £121.90
  • Now as combination for £121
  • You save £0.90

Fast delivery within approx. 4 business days

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads + D'Addario PW-MPC

Product no: 9000-0143-7332
  • Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome +
  • D'Addario PW-MPC Microfibre Polish Cloth
  • Recommended price £116.70
  • Now as combination for £116
  • You save £0.70

Fast delivery within approx. 4 business days

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads + D'Addario Shine Spray Cleaner

Product no: 9000-0143-7333
  • Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome +
  • D'Addario Shine Spray Cleaner cleaning fluid 118 ml
  • Recommended price £115.90
  • Now as combination for £115
  • You save £0.90

Fast delivery within approx. 4 business days

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads + Warwick RockCare MultiTool Inch Blue

Product no: 9000-0143-7334
  • Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome +
  • Warwick RockCare MultiTool Inch Blue 13-in-1 USA Guitar/Bass Multi-Tool with String Winder

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