No I built the box for two hdc3 10 coppers on my VFL 200.1 only 1500 a piece which is why its 1.5 net per sub, I would build it smaller like 2.5 to 2.75 if you have more power. The 25 dollar concepts got loud in this box though.
so like 2.75 cubes, tuned to 40hz should be a good starting point? Subs up, port side firing towards the drivers side. I've never messed with 10s before, I usually use 15"s but I thought this would be fun