You have no idea whether or not the open coil was caused by misuse or by a manufacturing defect. The lead could have easily been glued at an improper angle or position, and with the movement of the cone caused metal fatigue leading to a broken tinsel.open coils are not a warranty issue. that is from clipping the amp. i know most companies that build custom subs do not warrranty open coils.
I sent it to sales@ficaraudio.com originally I'll resend it to your email.If it's a defect, it's covered. If it's abuse..it isn't.
I never got an email from you..