testina mc goldring ethosGoldring Ethos The Ethos is a truly high end cartridge with a vital shank stylus and bare diamond. This multifaceted linear contact profile was chosen because it has a very low tip mass and large contact area while being very narrow front to back; even allowing undistorted retrieval of ultrasonic frequencies in a recording . To properly process this information, the heart of the Ethos cartridge is Goldring's hand built GOL 1 moving coil generator .