I am doing a blow thru in my standard cab f150 and I can't decide if I want 2 18" obsidians in a 4th order or if I should do 3 15" obsidians in a 4th order I have an Orion 2500d or an IA 20.1 to power them. Im leaning towards the 2 18" because I that will leave me a little bed space. What do you guys think?
It's my daily driver I don't compete much I just want a loud demo machine and be able to do some good hair tricks.
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