What series sub is this

[mwilder95]

My buddy pretty much gave me these things and he couldn’t remember if they were a 1500 series or a 2500 series. I looked under the magnet boot but the sticker was faded on both of them. 



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[winkychevelle 10+ year member]

Looks like a 2508

 

[THATpurpleKUSH 5,000+ posts]

1500 series has 2.0in coil, 2500 series has 2.5in coil. If you can get a tape between the spokes, measure the dia at the triple joint. 

 

[mwilder95]

They are 2508’s appreciate it guys