Box recommendation for 15" RF HX2

[golffanatic 10+ year member]

Just bought a mint condition on for dirt cheap... looking to build a new box for it... i was thinking 3 to 3.5 cf plus port tuned to 35hz... would like to know what port size i should go with and is that to high of a tuning... sub is dual 2 and will be powered by a audioque 1200d

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[kr15 5,000+ posts]

I heard one of those in a sealed box off an old school punch 500.2 at 2ohms and it pounded hella hard for only being around 650rms or so of power. Those hx2's are outstanding