We’ve all come across some noisy or poor sounding audio Equipment some or the other times in our lives, and we know how disturbing and annoying it can be! What causes such poor quality of sound, have your every wondered?

What causes noise in the audio?

When reactive currents in the ground find their way into audio signal circuits, an alternate current path is created through the electronics between the opposite reactive potentials, across a power supply, via the AC ground. The reactive currents complete the circuit through whatever grounding or signal path is available, which is what causes the Noise. And, with an infinite harmonic structure, all sorts of sonic qualities can be created in this noise, such as IM distortion, loss of imaging, and compromised signal accuracy across the entire audio bandwidth.

How can this be resolved?

There are all sorts of solutions that can be applied to resolve this issue, such as ground lifts, capacitors in grounding circuits, special power supply transformers, etc. But, all these are just temporary solutions, as none of these deal with the direct source of the problem. The permanent and ideal solution here is thus balanced power, which is a properly designed source of EMF for electronics. Balanced power is thus a foundation, and not a remedy.

How does balanced power work?

When reactive current flows into the ground, there exists an equal presence of inversely phased reactive current that flows from the mains into the ground, resulting in collapse at the signal reference. This phenomenon of phase cancellation is the core of how balanced power eliminates interference. Balanced AC has thus been recognized as an approved wiring method, as it fits the power requirements of sensitive equipment, and answers noise problems elegantly and effectively.

Is balanced power required for every electronic equipment?

When multiple equipment is involved in a single application, the more of such reactive currents are present. Similarly, when more channels are mixed, more background noise will be present. Moreover, when multiple equipment is used in tandem, the problem is that some equipment is more sensitive to noise than the others, making it very difficult to predict the issues. So then, does all of this equipment need to run on balanced AC to get the desired result? Unlikely as it may seem, the answer here is “NO”! In such an application, the standard practice of lifting the shields at the inputs of power amps can prove to be useful. Power amplifiers can run on unbalanced AC with little effect in hum, and balanced power can still be used effectively to rid the system of hums and buzzes. A very clean performance can be brought about when all the electronics are running on balanced AC, with the line level amps running on unbalanced AC, shield lifted.

AC harmonics and grounding currents have invaded nearly every branch of technology today, and balanced power certainly provides an effective solution here. However, there is yet a lot of usage of unbalanced AC in lots of environments today. but, if one understands that balanced power can build high performance audio systems, by simply and elegantly applying power to electronics, freedom from noise problems will not be a luxury anymore; it’ll rather be a foundation.

Miracle Electronics understands this, which is why it manufactures and supplies balanced power transformers to clean up the main power and the sound, thus making possible high-performing clean audible sound. Use these transformers in balanced studio power supply in India to convert conventional unbalanced power to symmetrical balanced power, and enhance the sound quality of your equipment. Get in touch and avail paramount quality transformers at the best price to reap the benefits of attenuated power line noise, earth loop elimination, reduction of radiated fields from power cords, elimination of reactive current in the earth wire, and thus reduced interference between your equipment.

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