In standard Gratia is equipped with anti-vibration feet, adapted to the weight of the device. Backlight logo. A phono stage is designed to work with MM, MC HO and MC cartridges. The amplification section is based on the high end operational amplifier – Burson Supreme Sound Opamp V5i. The heart of the extended power path is the Supreme Audio Toroidy.pl transformer. Undeniable advantage of Gratia is universality. Thanks to the wide settings varietes, it can be a perfect match with a low output signal level MC cartridges.