Enter the impedance of each individual speaker and select whether they are connected in series or parallel. The speaker impedance calculator will display the equivalent total impedance of the setup.
- Inductor Impedance Calculator
- Impedance Calculator
- Sound Pressure Level Calculator
- Port Length Calculator
Speaker Impedance Formula
The following is the speaker impedance formula:
Parallel: I = 1 / [ (1/X1) + (1/X2) + ( 1/X3) … ]
Series: I = X1 + X2 + X3 ….
- Where I is the equivalent impedance of the speaker setup (ohms)
- X1,X2, ect are the individual impedance of each speaker (ohms)
Speaker Impedance Definition
A speaker impedance is defined as the total impedance of the electrical circuit connecting 1 or more speakers. Impedance is a measure of the resistance to an alternating current. Impedance is a combination of typical ohmic resistance and reactance.
Speaker Impedance Importance
Why is speaker impedance important? A speaker impedance is a key factor in the power required to achieve a certain signal level. This can be seen if you look at the formula for power, P = V^2 / Z, where P is the power, V is the voltage, and Z is the impedance. When an impedance is lower, the required power will be higher, and when the impedance is higher the required power will be low. Therefore, a high impedance system will be less taxing on an amplifier when trying to achieve the same voltage.
How to calculate speaker impedance?
How to calculate a cost of capital?
- First, determine the total cost of debt.
For this example the cost of debt is found to be $5,000.00
- Next, determine the total cost of equity.
For this example, the cost of equity is found to be $6,000.00.
- Finally, calculate the cost of capital.
Using the formula above, the CoC is found to be 5,000+6,000 = $11,000.00
A speaker impedance typically only affects the total voltage that is required to meet a certain power level. So, if there is a proper amplifier the impedance should not affect the volume.
Yes, you can have more than 1 speaker with varying impedances, but it should be noted that you should have an amplifier capable of handling the equivalent impedance.