Subwoofer Wiring Diagram Generator
Audio Intensity · Free Tool
Subwoofer Wiring Diagram Generator
Pick your subwoofers and voice coils to see every wiring option, the final impedance your amp will see, and which loads are amp-safe. A free tool from Audio Intensity — car audio and CNC-built enclosures, curated by a multi-time champion.
Covers one or two identical subwoofers (3–4 sub setups coming soon). Always confirm your amplifier's minimum stable impedance in its manual before wiring.
How subwoofer wiring works
Series adds impedances together (ohms go up). Parallel divides equal impedances by how many there are (ohms go down). A dual voice coil (DVC) sub has two coils you can wire in series or parallel inside each sub, then you wire the subs together in series or parallel.
Lower impedance lets an amp make more power, but only down to the amp's minimum stable load. Wiring below that overheats and damages the amp.
This tool shows balanced wiring (every coil shares current equally). Mixed sub sizes/impedances aren't covered here. Verify the final load against your amplifier's rated minimum impedance before connecting.
Subwoofer wiring FAQ
How do I wire a dual 2-ohm subwoofer to 1 ohm?
Wire the sub's two voice coils in parallel — connect the two positive coil terminals together and the two negative terminals together, then run those to your amp. A single dual-voice-coil 2 Ω sub presents a 1 Ω load this way. Make sure your amp is 1 Ω stable.
Can I wire two DVC 4-ohm subs to 2 ohms?
No. Two identical dual-voice-coil 4 Ω subs can be wired to 1 Ω, 4 Ω, or 16 Ω — but not 2 Ω with balanced wiring. To land on 2 Ω, use a single DVC 4 Ω sub with its coils in parallel, or choose different subs.
What's the difference between a single and dual voice coil sub?
A single voice coil (SVC) sub has one coil and one set of terminals. A dual voice coil (DVC) sub has two independent coils, giving you more wiring options to hit the impedance your amplifier needs.
Is a 1-ohm load safe for my amplifier?
Only if your amplifier is rated 1 Ω stable. Most modern monoblock amps are, but always check the manual. Running a load below your amp's minimum stable impedance overheats and can destroy it.
Does lower impedance give more bass?
Lower impedance lets the amp produce more power, which can mean more output — but only down to the amp's minimum stable load. Going lower than that doesn't add usable power; it just risks damage.
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