Categories›Guitars›Graph Tech PRB 4400 B0 Ratio Bass Machine Heads with Y-style knob - 4-in-line, bass side (left) - Black
Updated 15 May 2026
| Brand | Graph Tech |
| Category | Guitars |
| Available at | 1 UK stores |
| 90-day avg | £101.00 |
Graph Tech
Graph Tech PRB 4400 B0 Ratio Bass Machine Heads with Y-style knob - 4-in-line, bass side (left) - Black
£101.00£111.00↓ 9% offFair Price
Cheapest at Bax · 1 store
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PRICE HISTORY
Current
£97
Change
+14.0%
Avg
£93
Low
£81
High
£102
Volatility
4.5%
PRODUCT DESCRIPTION
- The Graph Tech PRB-4400-B0 Ratio Bass Machine Heads are high-quality tuning machines for 4-string bass guitars with left-mounted 4-in-Line configuration. Thanks to the innovative Ratio system, each string has its own gear ratio, making tuning more consistent and faster. One full turn of the key always provides a tone difference, regardless of the string. With Y-Style Contemporary knobs, a sleek black finish and durable sealed construction, this set combines ease of use with style. An ideal upgrade for those seeking precision and reliability.