cyn
10+ year member
CarAudio.com Elite
In reality you could have a 2" coil take upwards of 2-3k on music if you have the cooling.. and correct materials. The dude that designed the Brahma motors had designed a 3" coil that could do 5-10k on music but adire went under.. someone might know the motor I'm talking about as I can't remember what it was.
