Categories›Guitars›Graph Tech PRB 6330 B0 Ratio Bass Machine Heads with Y-style knob - 6-string, 3 + 3 - Black
Updated 13 May 2026
| Brand | Graph Tech |
| Category | Guitars |
| Available at | 1 UK stores |
| 90-day avg | £165.50 |
Graph Tech
Graph Tech PRB 6330 B0 Ratio Bass Machine Heads with Y-style knob - 6-string, 3 + 3 - Black
£153.00£158.00↓ 3% offGood Buy
Cheapest at Bax · 1 store
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PRICE HISTORY
Current
£158
Change
+13.3%
Avg
£145
Low
£137
High
£158
Volatility
3.3%
PRODUCT DESCRIPTION
- The Graph Tech PRB-6330-B0 Ratio Bass Machine Heads are high-quality replacement tuning machines for 6-string basses. Thanks to the closed construction and individual gear ratios per string, you tune accurately and efficiently. One full turn of each knob changes exactly one pitch. The Y-Style knobs offer a comfortable grip and a modern look. Ideal for basses with a 3+3 configuration. Black finished for a stylish look and easy to assemble.