Better to be safe????

[bhsaudio 10+ year member]

Running different year but same model subs??

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[ace_800 5,000+ posts]

Depends on the sub, how far apart the models are and if they changed anything. Kickers or JL...I'd say sure. Sundown or FI probably not.

 

[sacsking916 5,000+ posts]

depends on the years interchanged

 

[BnGRacing 10+ year member]

Running different year but same model subs??

Look at the T/S parameters. If they're the same, you're OK.