Calculators

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...

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...

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...

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...

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...

This calculator for amplifier power, voltage and current has little significance but is rather interesting.In the specifications for an amplifier, it might say something like this:This is telling you the RMS power (or...

Jump Straight to CalculatorThe calculator below is useful in determining the total impedance of speakers in series. It also calculates how the power is shared between the speakers.Simple Impedance Calculation for Speakers in...

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...

If you don't like formulas then you definitely won't like the formula for calculating voltage ratios expressed in decibels.So, use the following calculators to get a handle on the decibels with different input and...

Jump Straight to CalculatorThis calculator for speakers in series/parallel is a combination of my popular Speakers in Parallel Calculator and my recent Speakers in Series Calculator. It allows you to try various combinations of...

How much do you need to increase the gain of an amplifier to make it sound twice as loud: 3dB, 6db or 10 dB?This amplifier power and volume calculator will help you understand that...

Here is a simple calculator for power, current, voltage and resistance (actually there are 6 different calculators, use the one relevant to the values you know and the values you need to know. Note: the...

Most countries have a stated maximum continuous noise level over a continuous 8 hour period (a working day). This is normally agreed to being a maximum continuous noise level of 85dB for 8 hours.Some...

Knowing the cost of running an electrical appliance is useful, and easy with this power usage calculator.You need to know three things:1. Cost of one kilowatt hour (kWh) of electricity. This should be on...

Energy efficient LED lamps for lighting are very popular. They certainly cost less to run than conventional lamps. But how much do you really save, and how long does it take to pay off...