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I need a new box, but don't know anything about them and don't know what kind to get. I know mostly everyone that reads this will just say to make a custom box but I don't really want to. Alright, I have 2 12" Alpine type R 500rms, 1500 peak, dual voice coil. I have a 1600w amp wired down to 1ohm. I will be pushing quite a bit of sound and want the best box. I don't really know to get slotted, bandpass, ported, subwoofer...I really don't know anything about boxes. Oh, this is in a 95 Toyota 4Runner SUV if that makes a difference. Does anyone have any suggestions to what will be the best and give me the best sound. Thanks,

if you insist on prefab just go sealed. that will yield the most forgiveness and decrease the likeliness of grenading your very nice subs that are going to be installed in a box that doesnt deserve them..

I second the motion.

I was looking around online about boxes and several people were talking about tuning a box. What does that mean and will I need a box tuned or something? Also how do you determine what size of box? My subs have a recommended air space of 0.7-1.0 cu. ft. with a mounting depth of 178mm (7”) and a mounting diameter of 275mm (10-7/8”). Sorry if I sound stupid but I am a huge newb at this.

get a nice prefab from subzone they make pretty decent ones.

tuning the box is what frequency its at my box for instance is at 36hz

go to ebay, search for "dual 12" slot port box" and find a slot-vented dual 12" enclosure for about $20, made with MDF and carpeted.
that'll give a lot of output, it's cheap, and it'll work fine with a pair of type R subs. No need to build a custom box if you don't want to.

for the record what is the make and model of that 1600w amplifier?

I have a HiFonics Burtis BX1600 amp. If I get a box what will I need it tuned to or does that even make a difference? Also, what size of box do I need according to the sizes I posted earlier, or how do I determine that?

the boxes are pre tuned, and around 2cu ft per 12" sub

I don't mean to question Kiki, but how do you pretune a box? Don't the Theil/Small parameters of the driver have something to say about how it's going to respond in the enclosure?