The recommended enclosure for this product is 0.85 to 1.75 cu. ft.

This is 4 ohms

At 800W RMS @ 2ohms, you would need to think about how to wire the subs. I currently run a parallel with these speakers at 600w @2ohms, which is perfect. these won't be over combed by the wattage, and my amp is just over the RMS rating for its 2ohm range. each are getting 300 watts @ 4ohms because that is how parallel works in the wiring type. I would take a look at some of the clutchfield tutorials for wiring diagrams for different types of subwoofer configurations. Hope this helps others.

That amp will push 800 watts at 2 ohms through 2 subs. Being said it also has a reputation of humming and is a full range amp so you'll have to set it to the much lower Hz range these operate in. These are maxed out at 1300watts per sub and it is always good practice to give subs more power than their arms than less and given you'd be in the sweet spot between their arms and top range it's not too bad a match for low cost build, just keep that amp cool.

No, this product is rated for 1300 watts.

well I cant help you but bestbuy has a install shop that you can pay a low price for professional install. im not near you. but its not hard to do it yourself look on youtube they have videos if you want to venture on your own if not then you need to get bestbuy to install or a local shop I don't install these anymore I don't have the patience so I have pros do it now.

Is very easy just make sure you have a 1.25 cubic sub box to get the best response just make sure you got the proper amps single channel max 1000 watts of 2 ohms.