All turntables need 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 that can be heard as a hum.
Therefore, all good turntables have a separate ground wire that can be connected to standard amplifiers or phono stages, which usually have a ground terminal. In this way, the different potentials are equalized and the hum is no longer audible.
However, many modern amplifiers, especially most sound bar amplifiers or streaming speakers, are not grounded. These systems are called "floating mass systems." If a standard turntable is connected to such a "floating mass" amplifier, the result will be an audible hum.
That's why we designed the High Power it power supply. The High Power it is a three-pin grounded power supply for Pro-Ject turntables to get rid of these ground-related hum problems, which especially occur with "floating mass" amplifiers, which do not have a true grounding.
Additionally, the High Power it provides cleaner current and more power to all 15V DC Pro-Ject turntables.
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Perfect, excellent service, I received it from the store because I am from Greece.
Great service and advice from the team. I upgraded my floor standing speakers and got very useful advice from Concerto Audio. Plus the speakers arrived within 24 hours too! Oh, and the speakers sound even better in my home. Well done, excellent.
I haven't bought from a proper hifi shop in many years. Decided I wanted a birthday present and so ended up in Concerto. A very pleasing experience. Excellent customer service from the young lady. Very happy with my purchase. I will return.
Great store. They have some great products for hifi lovers at very competitive prices. Wonderful attitude by the people who work there. I was able to do some A/B testing with different equipment and hook up my own DAC in their listening room. I am...
