Grow up seriously. He doesn't know what is what and already said that. Why not add some value rather than rambling.
To the OP. Although not well known in major stores, sundown has a very good rep with the online community. Solid amps, perform well and the owner, designer (whatever the hell else Jacob is doing these days LOL) is on the forums often giving advice and updates. There are TONS of amps that will give you more bang for the buck and more than likely offer you better warranties than the name brand stuff you will pick up at the store.
More importantly, look and listen to as many amps as you can. Getting the power and ohm specification is the easy part. Finding the amp that meets your personal taste for appearance (if you have any) extra features and such will be a bit more difficult (not to mention price range). In the end I think you will find that really the most important part is install. Install install install. You can use all Audison and Hertz and if you go with pre-fab, crap install, you still end up with a crap system.
Welcome to the forum as well //content.invisioncic.com/y282845/emoticons/wave.gif.002382ce7d7c19757ab945cc69819de1.gif