The Goal: Wiring to 1 Ohm The objective in wiring 2 dual 2 ohm subs to 1 ohm is to create a stable load that measures close to 1 ohm total. Depending on whether you wire them in series or parallel, the total load presented to the amplifier changes.
Achieving a Stable 1 Ohm Load with 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. From there, you wire the positive terminal of the amplifier to the positive terminals of both subs.
Subwoofer Coil State Subwooper Wiring Impedance per Sub Total System Impedance Internal Parallel (1 Ohm) External Parallel 1 Ohm 0. Parallel wiring is the key; it divides the total resistance, effectively halving the load.
Stable 1 Ohm Sub Wiring Strategy
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. 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.
More About Wiring 2 dual 2 ohm subs to 1 ohm
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