I only have experience with ct sounds.
I have the ct80.4 and the ct1500.1 in my sons camaro he is playing them everyday
I had the 80.4AB go bad on me almost in the first 30 days of getting it
I sent them an email with the install and some of the test I ran on the amp to confirm it was bad, they mailed me out a new one no questions asked.
I would have no problem using them again.
With the subs you are looking at 2000 watts should be enough