After poor performance from subwoofers.

[Trepkos 10+ year member]

I took my DMM to the amplifier speaker ports to measure the ohm's...(its a mono amplifier with 4 speaker ports). So I took the positive and negative ends of the DMM to one pair of the positive and negative subwoofer inputs and got the following reading, 3.34ohm's.

If the subwoofers are SVC 2-Ohm, shouldn't the reading be 2 atleast? And since the four sub inputs are suppose to eliminate the need for parallel wiring, shouldn't it be 1-ohm load on the subwoofer total?

Discuss.

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[WaTTsLOk187 10+ year member]

You need to disconnect the subs from the amp to measure what ohms the subs are wired too.

 

[Trepkos 10+ year member]

Additional information:

Wires Disconnected...

Each subwoofer's ohm ratings are supposedly 2ohms, DMM reading shows 2.8ohm.

The subwoofer's wires intertwined at the ends supposedly present a 1ohm load, DMM reads 1.6ohm.

 

[Trepkos 10+ year member]

I thought it might be accuracy issues with DMM, but the DMM properly displayed 4.0ohms(sometimes 3.9/4.1 for a second) when tested on my 4-ohm component woofer.

Could the voice coil be damaged?, the subwoofer wiring within the box loose a bit?

 

[IamDeMan 5,000+ posts]

What subwoofer drivers?

 

[Trepkos 10+ year member]

Kicker 12" CompVT 2-Ohm?

 

[T3mpest 10+ year member]

I took my DMM to the amplifier speaker ports to measure the ohm's...(its a mono amplifier with 4 speaker ports). So I took the positive and negative ends of the DMM to one pair of the positive and negative subwoofer inputs and got the following reading, 3.34ohm's.
If the subwoofers are SVC 2-Ohm, shouldn't the reading be 2 atleast? And since the four sub inputs are suppose to eliminate the need for parallel wiring, shouldn't it be 1-ohm load on the subwoofer total?

Discuss.

the term nominal impedence means just that "in name only". Impedence changes drastically and even with nothing connected you don't usually get the exact spec listed. As long as it isn't measuring drastically different, like 5323480 or .0002 your fine.

 

[ShakesAllDay 10+ year member]

I just busted out the trusty DMM and checked the resistance of my Infinity Kappa 124.7w set at 2 ohm. It reads 2.7. Funky monkey.

 

[Safe_Cracker 10+ year member]

The cone moves ever so slightly to air/sound movement and changes the reading ever so slight. Put the dmm on your sub not manually move it and note the readings...Polo.

 

[AcidicDreams 10+ year member]

EDIT...

I missed your posted...

Not sure what to tell you but it looks right...