Behringer microphono pp400 preamp behringer pp400 p with today s technological advances it is easy to forget that a turntable signal needs a little help before it reaches a mixer or home stereo if it s going to be heard the behringer pp400 phono preamp will give your turntable the boost it needs to bring your vinyl to life p p the ultra compact pp400 features stereo rca inputs and outputs as well as a frac14 trs output jack its incredible low noise operation delivers so