📥 Download the Quick Reference Chart
Prefer a single sheet you can print or keep on your phone?
👉 Click here to download the full 2x Subwoofer + 1 Amp Match Chart (PDF)
Powering Two Subwoofers with One Amp? Start Here.
Running two subwoofers on a single amplifier is one of the most popular setups for car audio enthusiasts who want power, balance, and deep bass—all without overcomplicating their system.
But not just any amp will do. To avoid underpowering your subs—or worse, damaging them—you need the right RMS power, impedance match, and wiring configuration.
What Makes the Right Match?
When pairing two subwoofers to a single amplifier, here’s what you must consider:
| Factor | Why It Matters |
|---|---|
| Combined RMS Power | Your amp should deliver at least the total RMS of both subs. |
| Final Impedance (Ohm Load) | Determines how much power the amp can safely deliver. |
| Wiring Configuration | Parallel or series wiring impacts final impedance. |
| Amplifier Class & Stability | Use a monoblock Class D amp that is stable at the final Ohm load. |
🔧 Need Help Understanding Wiring & Impedance?
Here’s a quick reference:
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2x SVC 4 Ohm subs → Parallel = 2 Ohm
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2x DVC 4 Ohm subs → Parallel = 1 Ohm
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2x DVC 2 Ohm subs → Series-Parallel = 2 Ohm
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2x DVC 1 Ohm subs → Series-Parallel = 1 Ohm
A monoblock amp that is 1 Ohm stable is recommended for most of these builds.
❓ FAQs:
Q: Can I mix subs with different impedances or RMS ratings?
A: No. Always use matching subwoofers for dual setups to ensure even power distribution and clean sound.
Q: Is it okay if the amp puts out a bit more power than the subs' RMS?
A: Yes—up to ~20% over RMS is generally safe with proper gain tuning.
Q: Where can I buy these amps or subs?
A: Check out our subwoofer collection and our amplifier collection to order online.
📞 Still Need Help?
We’re here to help you build the perfect match for your subwoofers.
📧 hello@americanbassusa.com | ☎️ 440-248-5858
