Understanding the Dual 2 Ohm Subwoofer A dual 2 ohm subwoofer is not a single voice coil; it is two separate voice coils wired together internally, each measuring 2 ohms. Often, these coils are already wired in series to present a 4 ohm load to the outside terminals.
Optimizing Power Handling for 2 Dual 2 Ohm Subwoofers
To achieve the lower impedance needed, you must bridge the internal taps to wire the coils in parallel, dropping the sub's impedance to 1 ohm before you even begin wiring to the amplifier. When you take two 1 ohm loads and wire them in parallel, the math dictates that the total impedance becomes 0.
Running dual 2 ohm subwoofers presents one of the most common yet misunderstood wiring challenges in car audio. Subwoofer Coil State Subwooper Wiring Impedance per Sub Total System Impedance Internal Parallel (1 Ohm) External Parallel 1 Ohm 0.
Optimizing Power Handling for 2 Dual 2 Ohm Subwoofers in Parallel Wiring
You have two primary options for a single dual 2 ohm sub: leave the coils in their default wired state or reconfigure them. This inherent flexibility is what makes these subs popular, but it also creates confusion when trying to match them to an amplifier that prefers a 1 ohm load.
More About Wiring 2 dual 2 ohm subs to 1 ohm
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