Rolls PP532 Bellari Passive PreamplifierThe Rolls Bellari PP532 is a preamp for audiophiles. It handles input switching and volume control without introducing any powered elements that might cause distortion into the signal. Indeed, this is a passive design: no power is required, and no active electronics are in the circuit path. The device's steel chassis houses four sets of RCA inputs in stereo pairs for your music sources, while one set of RCA connectors routes to your amplifier. A four