the subs I mentioned are subs that are not main stream, they are companies where if I have a problem it takes 20 min to speak to the owner of the company! and They always take care of their customers, The Sundown stuff is great, as is the Incriminator audio. The Flatline is by far the superior of the 12's I mentioned. and within your budget. The Incriminator brand's motto of No Crome No carbon fiber No bullshit is true. They make some of the nicest sounding competition ready daily usable subs on the market.

Incriminator even makes a 21 inch sub.... and its amazing. Most larger subs have a sloppy sound thats not accurate. The Incriminator uses Neo magnents that are alot more powerful. which eliminates those sloppy larger woofers.

The mkII is also a nice sub