Plinius Koru Phono Preamp Review Rick SchmidtFebruary 9, 2023 The Koru is a high-end phono stage at a mid-range price. The bold/elegant styling looks at home next to the fanciest of gear and the refined JFET amplification brings your record’s grooves into the room in an equally bold and elegant fashion. ReviewsTurntable AccessoriesVinyl Reviews