I recently just acquired my 2 12'' Adire Shiva MkIV and noticed a problem when I finally got them hooked up.
It seems I have quite a bit of voltage drop at high volume and long bass lines.
I took my car to an alternator shop to see if it was the problem, and we did a bit of voltage testing while it was playing.
When we tested at the amp, the voltage would bounce from 14.x to low 13's and even high 12's.
Im kinda pissed about this because without 14.4 V my amp wont achieve its dynamic power of 775wrms @ 2ohms. (MTX Thunder6500D amplifier)
Anyone got some suggestions as to help fix/reduce my voltage drop without a new alternator or battery?