Trying to identify Sundown sub to order correct recone kit

[13-SYNZ]

A friend wants me to recone his Sundown 10" sub but we can't figure out what model/version it is so we can order the correct recone kit. I've sent 2 emails to Sundown and also a email to directronix for help but so far no response. I don't want to guess and end up with the wrong recone and have to send it back. I've included some pics before the sub was stripped down. Really hope someone can help.

[slowfkncar]

Weigh it, under 50lbs = X, over = zv4.

 

Fwiw, it looks like an X series.

 

 

[13-SYNZ]

I cut out the cone and found out the black spider is 4 layers. Has a plastic venting ring.

 

Edited August 18, 2020 by 13-SYNZ
trying to merge info into 1st post

[doedallas]

I have a 15 one coil is shot. What is a zv.4 or 5 weight? 

[DiBo]

That's a zv4 

[DiBo]

That's a zv4 rev 1 with the OG mega roll surround. Get with DTX ( Directronix) for an up to date recone with mega roll V2. That sub uses a true D2 8 layer coil. I believe there is a high BL coil available as well but those coils are very similar if I'm not mistaken. That's a potent driver with the right soft parts.