Your 3 subs can only take 1,140 RMS all together, and when you wire your subs this way it will give that amp an 1.34 ohm load, and that amp will push around 1,100 watts at a 1.34 load? Which will be plenty for them subs.
Correct me if im wrong //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif