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Speakers in Parallel Calculator

Jump Straight to CalculatorThe calculator below is useful in determining the total impedance of speakers in parallel. It also calculates how the power is shared between the speakers.If all the speakers have the same impedance, the calculation is...

Amplifier, Speaker & SPL Calculator

These calculators will find how loud an amplifier and speaker combination will be, or what size amplifier you need to make a speaker a certain loudness.There are five factors which contribute to how loud a speaker will be:1) The...

Distributed Speaker System Cable Loss Calculator

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 of the speakers,...

Speaker Dispersion Calculator

If you look at the specifications of speaker boxes, you should see something like Dispersion (H x V): 90 x 50. This is stating the nominal angle of high frequency dispersion in the horizontal and vertical plane.  These figures...

Distributed Speaker System SPL Calculator

This distributed speaker system SPL calculator takes the guess work out of which speaker tap to use. It will tell you the correct power tap for each speaker in your design. The calculator is really useful when balancing levels...

Speaker Cable Loss Calculator

Jump Straight to CalculatorThis speaker cable loss calculator simply tells you how much resistance is in your speaker cables and what decibel(dB) and power losses are attributed to your speaker cable. It also calculates the effective damping...

Video Signals & Cables: S-Video

In this article we look at S-video signal: what it is, what cables to use, where S-video is used and the problems with it.  This is the second in the series of articles outlining the different video signals used...

What is Electrical Power?

What is electrical power? What is the formula for electrical power? What is watts, volts and amps? This article introduces and illustrates these electrical basics and in particular the power formula. As this is not a text book, the...

Understanding Distributed Speaker Systems

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, churches, clubs, offices,...

Understanding Decibels (part 1)

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 tenth of a...