In the present age of the mp3 and other digital audio formats, it can be easy to forget that turntable signals needs a little help before your mixer, or home entertainment system, can bring those memories back to life. Thanks to the MICROPHONO PP400 phono preamp, your turntable ...In the present age of the mp3 and other digital audio formats, it can be easy to forget that turntable signals needs a little help before your mixer, or home entertainment system, can bring those memories back to life. Thanks to the MICROPHONO PP400 phono preamp, your turntable will get the boost it needs, and you can relive all those precious memories – or create some new ones! The ultra-compact PP400 features stereo RCA Inputs and Outputs, as well as a ¼ TRS Output jack.