@ridintwo6s: Sorry Bro, I was sleeping !
I didn't meter The SPL sorry !
Now I'm going to build a wall for the Zv.3 after the Re-cone (18" NSv.2 coil+Zv.4 spider) soon 2× in a wall !
Once I finish building I will try to buy SPL Meter, Saudi Arabia SUCKS nobody knows the SPL Meter, They just install pioneer, jvc, sony xplod, kenwood woofers, They cut the holes in the back for speakers and woofers in the rear metal deck, Always free air any sub/speaker they buy, They are disconnecting the front speakers, They claim it's better to hear all from the rear !!!
These people are Horrible BRO,
So I'm buying SPL Meter Soon !
Thank you for replying,