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Speaker Wiring Diagram
Orange County Speaker www.speakerrepair.com ________________________________________ |
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To achieve impedance (ohmΩ) standardization, all speaker manufacturers now measure impedance (ohmΩ) at 400 Hz. This measurement gives you a correct A.C. impedance (ohmΩ) of a speaker. Therefore, at 400 Hz your 8Ω speaker is actually 8Ω (or close to 8 Ω). However, anywhere above or below 400 Hz the impedance will vary. |
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Measuring a speaker on an ohm meter will actually give you a D.C. resistance reading, not the A.C. impedance (ohmΩ) of the speaker. To measure A.C. impedance (ohmΩ) of a speaker you need an impedance bridge capable of measuring at 400 Hz. The D.C. resistance of a speaker is generally +- 3Ω of the correct A.C. impedance (ohmΩ).
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Parallel |  |
Series |  |
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If both speakers are 4 Ω the output is 2 Ω If both speakers are 8 Ω If both speakers are 16 Ω |
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If both speakers are 4 Ω the output is 8 Ω If both speakers are 8 Ω If both speakers are 16 Ω |
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Parallel | |
Series Parallel |
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If all 4 speakers are 4 Ω the output is 1 Ω If all 4 speakers are 8 Ω If all 4 speakers are 16 Ω |
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If all 4 speakers are 4 Ω the output is 4 Ω If all 4 speakers are 8 Ω If all 4 seakers are 16 Ω |