A phono preamplifier, also known as a phono stage, is an audio component that amplifies the signal from your turntable to a level that allows you to connect it to your sound system the same way you would with any other audio source.
Another important job of a phono preamp is to apply the RIAA equalization curve to the signal, reverting it back to the shape it was on the original recording, but if you’re just starting out, this may be a bit deeper than you need to go right now. The most important thing to know is that you will need a phono preamp in order to enjoy your vinyl records.