Q&A: What size box should I have to maximize SPL?

stupid design
by John Kannenberg

Question by Joshua: What size box should I have to maximize SPL?

Okay so I am having a custom box made for my 15″ Memphis Mojo (15-CM15D2) I’m going to be pushing it with a 2k Memphis Mojo amp. I currently drive a 2000 Grand Prix GTP, so its a trunk bumper. I want to find out the shape, cubic ft, and design that would be the best for my vehical and other sedans. I would like to be competition capable if I ever find some money worth dropping into the system.

Best answer:

Answer by N2Audio
Before you get too deep into this…
Last summer I put a 15″ in my nephew’s GP (’99).
The box was around 4 cubic feet ported to the mid 30’s. No unusual shape – basically just a rectangle – leaning toward a simple cube.
It was too large to fit in the trunk assembled. I had to remove a couple panels to get it in the trunk, then rebuild it there.
Quite a pain.

That being said – the Diamond D6 15″ getting around 1000w rms is stupid loud and sounds good too.

Your combo SHOULD about blow you out of the car and sound good doing it if it’s done right.

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