Categories›Guitars›Graph Tech PRB 4400 C0 Ratio Bass Machine Heads with Y-pillar knob - 4-in-line, bass side (left) - Chrome
Updated 15 May 2026
| Brand | Graph Tech |
| Category | Guitars |
| Available at | 1 UK stores |
| 90-day avg | £108.33 |
Graph Tech
Graph Tech PRB 4400 C0 Ratio Bass Machine Heads with Y-pillar knob - 4-in-line, bass side (left) - Chrome
£110.00£111.00↓ 1% offFair Price
Cheapest at Bax · 1 store
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PRICE HISTORY
Current
£102
Change
+6.0%
Avg
£101
Low
£94
High
£106
Volatility
3.3%
PRODUCT DESCRIPTION
- The Graph Tech PRB-4400-C0 Ratio Bass Machine Heads are high-quality tuning machines specially designed for 4-string basses. Thanks to the unique Ratio transmissions, each string has its own ideal delay, making tuning faster, more consistent and more accurate. With one full turn of the key, you raise or lower the pitch exactly one whole note. The closed construction and modern Y-Style design ensure durability and a contemporary look. This set of four mechanisms is finished in chrome and suitable for left-handed 4-in-line configurations.