Distributed speaker systems are also known as "100 volt line" or "70 volt line" speaker systems. They are used extensively where multiple speakers are required. Distributed speaker systems are commonly used in airports, shopping centers, schools,...

Jump Straight to CalculatorThis calculator will help you determine the cable losses in distributed speaker systems (also known as 100-volt or 70-volt speaker systems). By inputting the cable size and length, and the number and details...

Speaker sensitivity is a measurement of how well a speaker converts the amplifier power to acoustic energy. In others words, how loud the speaker will be for a given amplifier power.How Speaker Sensitivity is MeasuredMeasuring speaker...

This article logically shows the relationship between amplifier power, SPL and loudness. It includes a level difference exercise and a gain calculator.

Decibels are widely used in audio, and often misunderstood. These articles give a practical understanding on using decibels in audio work.  But first, some basic questions and answers about decibels. What is a decibel? A decibel is a...

This article looks at some basic concepts and misconceptions of AC and DC electrical circuits. There are no formulas involved, just explanations to some commonly asked questions like:What is AC and DC? What are their differences...

In a previous article we looked at the power formula, and discussed the relationship between power, voltage and current. Having looked at the power formula, there is now only one more formula needed to help solve...

In an earlier article we looked at the issues involved in connecting multiple speakers to one amplifier. In this article we look at some of the practical ways of wiring four speakers to each amplifier (left...

After answering nearly 1000 questions on connecting speakers on this website, some common themes have emerged.Please read the answers to these Frequently Asked Questions (FAQs) on connecting speakers before asking your own.If, after reading these FAQs,...