Categories›Guitars›Graph Tech PRB 6330 C0 Ratio Bass Machine Heads with Y-style knob - 6-string, 3 + 3 - Chrome
Updated 12 May 2026
| Brand | Graph Tech |
| Category | Guitars |
| Available at | 1 UK stores |
| 90-day avg | £149.00 |
Graph Tech
Graph Tech PRB 6330 C0 Ratio Bass Machine Heads with Y-style knob - 6-string, 3 + 3 - Chrome
£149.00£178.00↓ 16% offFair Price
Cheapest at Bax · 1 store
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PRICE HISTORY
Current
£140
Change
+10.9%
Avg
£134
Low
£122
High
£142
Volatility
4.1%
PRODUCT DESCRIPTION
- Designed specifically for 6-string basses, these Graph Tech PRB-6330-C0 Ratio bass guitar tuning machines deliver optimum tuning of each string thanks to their unique gear ratio. Each machine head is individually calibrated so that one full rotation of the knob changes exactly one pitch. The sealed housing protects the gears from dirt and wear, while the chrome finish and Y-style knobs give a modern look. Compatible with most 6-string bass guitars, ideal for both professional use and hobbyists.