Stupid wiring question

[KTMrida4life 10+ year member]

I feel dumb even asking this, but is it possible to wire 3 D4 subs down to .67 ohms? Not seeing that option in wiring calculators/diagrams...

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[bubbagumper6 5,000+ posts]

Wiring every coil in parallel should yield 0.67 ohms.

1/Rf = 1/R1 + 1/R2 + 1/R3 + 1/R4...etc

1/Rf = 1/4 + 1/4 + 1/4 + 1/4 + 1/4 + 1/4

1/Rf = 1.5

Rf = 0.67

 

[KTMrida4life 10+ year member]

Wiring every coil in parallel should yield 0.67 ohms.
1/Rf = 1/R1 + 1/R2 + 1/R3 + 1/R4...etc

1/Rf = 1/4 + 1/4 + 1/4 + 1/4 + 1/4 + 1/4

1/Rf = 1.5

Rf = 0.67

Okay thanks man, thats what I thought. Not sure why online calculators arent showing that as an option.

 

[bubbagumper6 5,000+ posts]

I think it's because they assume that to be an invalid wiring setup. Most commercial amplifiers aren't rated below 1 ohm. This is why it's better to know the math behind the calculators so you don't have to rely on them.