MiXit-G
New member
How can i test a speakers impedeance ? just with a multimeter?
And how would running speakers in series or parrallel affect resistance?
And how would running speakers in series or parrallel affect resistance?
E
esun127
New member
A multimeter should give the resistance theoretically, but I've never actually tried it so I woudln't know.
When you run speakers in series, you just add all the resistances.
When you run speakers in parallel, the formula for the equivalent resistance is
1/Req = 1/R1 + 1/R2 + ..... etc
When you run speakers in series, you just add all the resistances.
When you run speakers in parallel, the formula for the equivalent resistance is
1/Req = 1/R1 + 1/R2 + ..... etc
kid klash
The original Mr. Nice Guy
Yes - you can use a multimeter to test the DC resistance (impedance) of a speaker.
The resistance of a speaker will vary, depending upon the frequency of the signal going through the voice coil.
The typical "8 ohm" speaker has a DC resistance of 5-6 ohms; the typical "4 ohm" speaker has a DC resistance of 3 ohms.
The resistance of a speaker will vary, depending upon the frequency of the signal going through the voice coil.
The typical "8 ohm" speaker has a DC resistance of 5-6 ohms; the typical "4 ohm" speaker has a DC resistance of 3 ohms.
Sonixx
New member
you've got it backwards...kid klash said:
you can't measure the impedance with a DC multimeter. impedance is based on frequency.
you can measure the DC resistance of the Coil which is not based on frequency.
resistance is not the same as impedance.
kid klash
The original Mr. Nice Guy
Thanks Sonixx - you're right - sometimes it's tough to clack out a decent reply when you're doing it at work, on the sly...
