Pride Carbon Fiber vs. 3000 lbs The carbon fiber used in our subwoofers is manufactured using a special process. No lacquer is applied — only real carbon fiber and resin. How do we test the material’s strength? By placing a car weighing almost 3000 lbs directly on it 😁 You get this exact material when choosing subwoofers from the M.25 series and above. Be careful when someone claims their products are “carbon.” In many cases, it only looks like carbon fiber but does not have its real mechanical