I they say 2 ohm why do they measure 1,5 ohms

That's the dcr. The inductance of a speaker rises with a rise in frequency.

That's the dcr. The inductance of a speaker rises with a rise in frequency.

Is this normal?

Yes completely normal.

Yes completely normal.

then nothing is wrong.

Impedance, not inductance.

You are reading the direct current resistance, a D2 coil is normally about 1.4 ohms per coil, and a D1 is normally 0.7 ohms per coil.

Impedance, not inductance.

You are reading the direct current resistance, a D2 coil is normally about 1.4 ohms per coil, and a D1 is normally 0.7 ohms per coil.

Thanks

Duran, doesn't inductance rise also?

your measuring DC which is resistance... DCR is what you are measuring.

The rating of the coil is rated as impedance, which is AC.

AC fluctuates, DC is constant.

Impedance=AC

Resistance=DC

your measuring DC which is resistance... DCR is what you are measuring.

The rating of the coil is rated as impedance, which is AC.

AC fluctuates, DC is constant.

Impedance=AC

Resistance=DC

So if I measured both coils in series it would be near 4.0?

not if each is reading 1.5

YOU ARE MEASURING DC, NOT AC!

If both coils read 1.5, then series would be 3.0, parallel would be 0.75

You cannot measure impedance like you can resistance, it has to be calculated.

not if each is reading 1.5

YOU ARE MEASURING DC, NOT AC!

If both coils read 1.5, then series would be 3.0, parallel would be 0.75

You cannot measure impedance like you can resistance, it has to be calculated.

Then a dmm is almost usleast in that app?

No, say if the coil was blown, or a lead snapped, there would be no resistance

Duran, doesn't inductance rise also?

Yes, inductance changes every time the coil moves.