JL 10W6 Ohm Readings

[Qbenjamin 10+ year member]

I am trying to create a setup for someone who has this subwoofer, and a 500 watt kicker amp. The 10W6 that he has is supposed to be the 10W6v2, but the model information has been taken off of it. When I check it on the DMM, I get a 3.2 ohm reading without wiring it in parallel. When I wire it in parallel, I get 1.7ohms as the final load (generally this would be a 2 ohm load presented to the amp).

The serial # on the sub is JLW161921, and it was sold to him as a 10W6v2. I have never owned a JL sub (voice coil readings are always weird with the 6/3 ohm load mess), so I am reaching out to find out if he has been scammed. The sub has the small W6 badge at the bottom of the dust cap.

I'd hate to wire this up, and have him blow it since the other W6's only handle around 300 watts.

Appreciate the help in advance.

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[Jeffdachef 5,000+ posts]

Might be a worn out voice coil needing a recone

 

[bebitte3o 10+ year member]

The w6v2 is d4 sub rated at 600rms they can take 500 clean rms easy!

 

[NSTALN 10+ year member]

What you're reading is the resistance of the coil, the 'DCR' Direct Currect Resistance. That is the resistance of the physical coil at rest and is aptly called 'resistance'. The 4ohm Nominal Rating of the coil when energized (reactive inductance) of the coil is the 'impedance' of the coil. When a coil gets energized and heats up the temp causes the resistance to rise as much as 30%.

Manufactures factor this change in when they rate their speakers. Reading direct coils at rest often times '4ohm' nominal impedance coils are 3.xohms, and '8ohm' nominal impedance coils are usually 6.xohms DCR.

 

[basswiigee]

1.7 that would be a 2ohm load? am i missing something? everything sounds normal to me... yeah that sub will eat 500 watts anything over 600 voids warranty though!!! if you had one that is... lol

 

[Qbenjamin 10+ year member]

Thanks for the replies, the voice coils are just "different" to say the least. I am used to the normal 1;2;4 ohm readings when I test using the DMM (per coil). The 3.3 was just throwing me off. I'll press with the box build, and feed it as normal.

Thanx again.