Suitable for Pro-Ject Turntables If you're looking for a replacement adapt for your Pro-Ject Audio turntable. Make sure you choose the correct power adapter for your turntable. Use guide chart below to make sure you have the right one. Important: DC power supplies are not suitable for AC input turntables and vice-versa. Make sure you've got the right power supply! Before you order, look at the back of your turntable to find out which power supply you need. You’ll find a small label next to the socket where the power cable plugs in that tells you what you need. 15V DC power supply If you find a sticker with “15V” next to a solid horizontal line over three shorter straight lines, you need the 15V DC power supply. 16V AC power supply If the sticker has “16V” next to a wavy line (or a tilde), you’ll need the 16V AC power supply.