[SD-2 10D2]

My Sundown SD-2 12 does way better in a ported box than a sealed box.

[Noob SD-2 12 air space question]

I made my box a tad bigger to make up for the woofer displacement. Box volume before displacement - 1.17 cubic feet. The box recomendations off sundown's website say 1 cubic foot sealed. Sub takes up .10 for displacement. After woofer displacement I will have 1.07 cubic feet. Will that extra .07 have any effect? Good or bad, will it be right

[My boxes for 2 Sundown SD-2 12's too small?]

That's how I have them wired now. Running at a 2-ohm load. They just sound awful in the enclosure that I have now.

[My boxes for 2 Sundown SD-2 12's too small?]

I have OFC 4 AWG power and grounds. Amp is the Rockford Fosgate R1000.1D. Prime series. Don't even know if it is putting out true wattage really. It came with a birthsheet of 1083 watts RMS @ 2 ohms. I don't get any movement or output of the subs unless the gain is at 9 out of 11 either.

[My boxes for 2 Sundown SD-2 12's too small?]

you can't really expect much sound out of a 0.65 cu ft prefab box..

Didn't even subtract woofer displacement. Probably sitting on 0.50 cu feet.

[My boxes for 2 Sundown SD-2 12's too small?]

Ill just go up an inch on the height and it will give me 1.14 cubic feet according to the Rockford Box Wizard.

Width - 21 inches

Height - 16 inches

Depth - 8 inches

[My boxes for 2 Sundown SD-2 12's too small?]

I'm doing 2 separate boxes. One behind each seat. The way I got the design right now the new boxes will have 1.06 cu ft each. Width-21 inches Depth-8 inches Height-15

I checked on Rockford Fosgate box wizard and it said that those dimensions will give me 1.06 cu ft. Will that be good enough, or do I need to try and make it a little bit bigger. Building out of 5/8 mdf. Building boxes Friday night.

[My boxes for 2 Sundown SD-2 12's too small?]

Ok I bought 2 Sundown SD-2 12's for my 95 Regular Cab Dodge Ram 1500. I did separate prefab boxes (one behind each seat) and I'm not pleased. I am planning on building some boxes built to Sundown specs 1.0 Cubic Feet per sub. If I build a box closer to Sundowns specs will it be much better than what I have them in now---prefab. I think it is like .65 cu feet right now, for each sub. I got 550 watts RMS running to each of them right now. 1100 watts RMS total