This is a 18V fixed-voltage MyVolts-branded power supply adaptor designed to meet exactly the power specification of your Pro-Ject Phono Box Phono preamp. PLEASE NOTE: This is suitable for the Pro-Ject Phono Box requiring 18V DC only. It won't work with the models requiring 16V AC, so please check the power input of your unit carefully before you buy. Any questions? Ask us Specifications: - Output voltage is 18V - Max. output amperage is correct for your device - Output tip is the right size and specification - we've tested it thoroughly - 2-pin plug for use with the Type C (EU) wall sockets - Input voltage is AC100-240V, 50/60Hz In addition, this -branded replacement power supply for Pro-Ject Phono Box Phono preamp is: - Compliant with all safety standards, and features overvoltage, overcurrent and short-circuit protection to protect your device from damage - RoHS and CE-certified - Energy Star level 6 approved, guaranteeing more efficient delivery of power to your devices, at less cost to you - Covered by a 2 years' warranty: if the power supply fails within 2 years from the date of purchase, we'll replace it, no worries.