Pro-Ject High Power It


Pro-Ject 15V DC, 1.0A Turntable Power Supply





Cleaner Current, More Power and Ground Connection

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.


  • Proper grounding dramatically reduces grounding hum of “floating mass” systems/amplifiers
  • 3 pin DC power supply with ground connection
  • Delivers cleaner current and more power to all 15V DC Pro-Ject turntables

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 equalised 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 Pro-Ject designed the High Power it power supply. The High Power it 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 delivers cleaner current and more power to all 15V DC Pro-Ject turntables.


  • Input: 100-240V AC, 1.1A, 50-60Hz
  • Output: 15V DC, 1.0A
  • Diameter: DC plug 2.1 mm
  • Dimensions: 97 x 42 x 30 mm
  • Weight: 100 g (w/o power cord)

Check out the brochure for more information – ProJect High Power It Brochure


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