Is Phono Input the Same as AUX?

Turntables require special preamplifier to work. When you buying an amplifier for a turntable you pay attention to inputs. At the rear side of the amp, you can find plenty of them, depending on the model.

There can be Phono and Aux inputs. Learning more about them can help you to choose a device, which you can find in the best amplifier for turntable article.

AUX Inputs

AUX stands for auxiliary, which means that is not the main input of the device. They can be of two main types, RCA and 3.5mm mini-jack. AUX inputs are often used in older devices. AUX inputs in most cases are used for audio devices that receive signals from peripheral sound sources. AUX inputs are very common in old devices, which require adapters while connecting to modern sound equipment. It is an asynchronous port, which is suitable for audio signals from:

• Speakers
• MP3 Players
• Headphones
• Amplifiers
• Portable music CD players
• PC
• Consoles
• Smartphones

Is It Possible to Use Phono Inputs for AUX Inputs?

Unfortunately, you cannot use phono inputs as aux inputs. Phono inputs have an internal EQ while AUX is a clean input. Moreover, Phono inputs expect sound signals, which are sent directly from a cartridge. Such signals have totally different level of frequency response. In addition, the output of Phono is 2.5mV while AUX only 1V. You can plug into the phono inputs, however, you will receive low quality, without full volume sounds.