The speaker with a lower impedance should be connected to the amplifier. If you have two subwoofers with different impedances, the lower impedance should be connected to the amplifier.įor example, if one subwoofer has an impedance of four ohms and the other is two ohms. The impedances add together to create a new impedance.įor example, two speakers with an impedance of eight ohms wired in parallel have a total impedance of four ohms. When two speakers of two different impedances are wired in parallel, the total impedance is the same as one speaker with double the ohms. If the impedance of each subwoofer is different, they can’t be wired together without causing damage to the amplifiers. In most cases, you can’t wire multiple subwoofers together and expect them to perform as one. Today’s class D amplifiers can handle 1 ohm and have ratings like this. You won’t be able to reach the power capacity of your amplifier otherwise.
#4ohm subwoofer wiring diagrams full#
To allow the amp to output its full power, a 2 ohm DVC subwoofer could be used and wired in parallel. While it is possible to add a second 2-ohm subwoofer and wire both in parallel, the cost would be higher, the installation space more limited, and so on. The additional power from your amplifier is divided by the total number of speakers in parallel.įor example, if you have two dual voice coil subwoofers wired in parallel to an amplifier, each subwoofer will receive half of the total power. In order to wire a dual voice coil subwoofer in parallel, you need a minimum of four wires going to the speaker terminals.
The speakers can be wired in parallel, which gives you higher power output. With dual voice coil subwoofers, you can get more power from the amplifier by connecting the speakers in parallel. Power ratings for mono amplifiers may be as follows: Nowadays, most car amplifiers are rated for power output (in Watts) at specific speaker loads.
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