One of my coils recently went bad out of no where (was not thermal failure, sub was receiving a clean 900 watt signal.) and was curious how much recones usually go for? I would email Jake but I send him almost an email a day and I'm trying to not clog up his inbox. It was a dual 1 ohm 56mm coil with extra stiff spiders. The odd thing is one coil reads fine on the multimeter, but the other side that reads OL, or over load.