This is an 18V fixed-voltage power supply adapter designed to meet the power specifications of your Pro-Ject Phono Box phono preamp. Please note: This adapter is suitable only for Pro-Ject Phono Box models requiring 18V DC input. It is not compatible with models requiring 16V AC. Verify your device's input requirements before purchasing. Specifications: - Output voltage: 18V DC - Maximum output current compatible with device requirements - Correct tip size and polarity for reliable connection - Thoroughly tested for performance and compatibility - 2-pin plug compatible with Type C (EU) wall sockets - Input voltage: AC 100–240V, 50/60Hz Additional features: - Complies with applicable safety standards - Includes overvoltage, overcurrent, and short-circuit protection - RoHS and CE certified - Energy efficient design in accordance with Energy Star Level 6 guidelines - Backed by a 2-year warranty: replacement provided if failure occurs within the warranty period