Price updated 29 Apr 2026, 08:00
Graph Tech·Guitars and Basses›Guitar & Bass Spare Parts›Guitar/Bass Machine Heads›4L Tuning Machines for Bass
Graph Tech GT PRB 4400 B0 Ratio Bass
Fair Price· Near 90-day average
90d Low
£109.90
Best seen
90d High
£109.90
Worst seen
90d Average
£109.90
Baseline
30d Forecast
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| Price + Ship | Store | Price | Shipping | Stock | Condition | Rating | |
|---|---|---|---|---|---|---|---|
Best£109.90 + £8.90 ship | Best£101.00 | £8.90 | Out of stock | new | — |
Product Description
- Graph Tech GT PRB 4400 B0 Ratio Bass
- Machine Head Set For Electric Bass
- Configuration: 4-in-Line
- Bass Side (Left)
- Closed construction
- Each machine head has its own ratio, calibrated for the respective string
- One full turn of any machine head results in a complete pitch change (+ / -)
- Ratio: E - 36:1
- A - 30:1
- D - 20:1
- G - 18:1
- Axle diameter without the mounting sleeve: 8.9 mm
- Mounting diameter with the mounting sleeve: 13.9 mm
- Weight per machine head: approx. 52.62 g
- Y-Style Contemporary buttons
- Finish: Black
