Just got a new subwoofer with 2×2 Ohm impedance and wondering how to connect it correctly to your amplifier? Don’t worry, it’s easier than you might think! In this article, we’ll explain step-by-step how to wire your subwoofer and what to look out for to get the best sound.
What Does 2×2 Ohm Impedance Mean?
Impedance, measured in Ohms (Ω), describes a speaker’s resistance to the electrical current supplied by the amplifier. A 2×2 Ohm subwoofer has two voice coils, each with a 2 Ohm resistance. This configuration offers you various connection options for increased flexibility and power.
Subwoofer connection terminals
Proper Wiring for Your 2×2 Ohm Subwoofer
Depending on the impedance supported by your amplifier, there are different ways to wire your subwoofer:
1. Parallel Wiring for Maximum Power
With parallel wiring, you connect both voice coils of the subwoofer in parallel with each other. This results in a total impedance of 1 Ohm. This connection method delivers maximum power but should only be used if your amplifier is stable at 1 Ohm.
“Many inexperienced DIYers underestimate the importance of impedance. An impedance that is too low can damage the amplifier,” warns experienced car electronics technician Michael Berger.
2. Series Wiring for Higher Impedance
With series wiring, you connect the subwoofer’s voice coils in series. This results in a total impedance of 4 Ohms. This connection method is suitable if your amplifier does not support a 1 Ohm impedance.
Dual voice coil subwoofer wiring diagram
Advantages of a 2×2 Ohm Subwoofer
A subwoofer with 2×2 Ohm impedance offers several advantages compared to a single voice coil subwoofer:
- Flexibility: You can match the subwoofer’s impedance to your amplifier.
- More Power: Parallel wiring allows you to extract maximum power from your subwoofer.
- Better Sound: When properly powered, a 2×2 Ohm subwoofer can deliver more precise and impactful bass.
Important Installation Notes
- Always use high-quality cables with sufficient gauge.
- Pay attention to the correct polarity (+/-) when connecting the subwoofer.
- Properly set your amplifier to avoid damaging the subwoofer.
- If in doubt, seek help from a professional.
Still Have Subwoofer Questions?
- How do I properly set my amplifier?
- Which subwoofer is right for my car?
- What cables do I need for my car audio system?
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