Description Grounded, high performance power supply for Pro-Ject DC turntables Every turntable needs proper grounding, otherwise electrical hum may be induced. If a turntable is not properly grounded, it may have a different reference potential than the connected amplifier. Consequently, these potential differences induce a compensating current which can be heard as hum. Therefore, all good turntables have a separate ground cable which can be connected to standard amplifiers or phonostages, which usually have a ground terminal. This way different potentials are equalized and hum is no longer audible. However, many modern amps, especially most amps of soundbars or streaming speakers have no ground connection. These systems are referenced as floating mass systems. If a standard turntable is connected to such a floating mass amplifier, audible hum will be the result. Therefore, we designed the High Power it 2 power supply. The High Power it 2 is a three pin power supply with ground connection for Pro-Ject turntables to get rid of these ground related hum problems, especially occurring with amplifiers with floating mass, which have no real ground connection. Moreover, the High Power it 2 delivers cleaner current and more power for all Pro-Ject 15V DC turntables.
