Car Audio Subwoofers

showtimecaraudio.net and Edward Lester start the process of designing the HHR Demo system. Learn the steps it takes to properly design a Car Stereo Setup, From entry level to advanced. If you watch the whole video you will learn a few interesting things along the way. And see the start of an epic audio build. Like our page at http and please subscribe here. We find the area of a circle by Pi times the radius squared. So 4 15s would be 7.5 x 7.5 x 3.14 x 4 = 706.5 total sq inches. And 6 12s is 6 x 6 x 3.14 x 6 = 678.24 sq inches total.