Sundown X15 Port??

[oquinn24]

So I bought this bohemoth of a subwoofer, the X 15 from sundown. I got a box already built with 5.4 ft^3 after sub displacement, just waiting for an aero port. I'm probably going to tune it to ~29-30 Hz. I'll be putting about 1800 - 2000 watts on it.

My true question is about some recommendations on the port area, port diameter, and port length you guys have. Which would be best?

I have two 4" aero ports, and I could use those, but I was thinking either a single 6" or 8". Just let me know.

Thanks in advance,

Kyle

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