Congrats I have two as well. You have a subwoofer with absurd flux variation, no power compression and if youve ever seen a FEA model of one, youd laugh as hard as I have when it comes to inefficiency. BTW I think the lvl5s are the only motors I have ever reconed where I needed more then 3 shims, I think I used 5 or 6 on each... talk about inefficiency. Ask anyone who really knows about subwoofers, using such an absurd amount of ferrite is a prekindergarten atempt to make a a powerful subwoofer. Any intelligent acoustic engineer can create the same amount of flux compression with 1/3 the ferrite, easily.