US Amps over-rated?? Uhm no... Their XT line is the "entry level" stuff which is actually much nicer then most out there.. USAmps, revamped the XT lines power supply for 08 so they do, do rated.. The XT4000 has 3x40 amp fuses, you do the math... They are very nice for power, they certainly arent anything special bu tthey are decent.. I know theres a video floating around with an interview with US amps about the XT line in which they state that the XT line is over-rated... I think thats the old XT line.. Ive sold many and installed many XT line amps with very favorable results.. Id compare the XT line to TMA (JL Audios entry line) But i actually like the XT'x better then Total mobile audio and i do carry and sell both... If you can save a few bucks go for an MD2D US, they are under-rated and are monsters.. I run all MD US and RE equipment in my demo car and my wifes rig is a complete XT line setup.. The XT4 slaps around the SX15D2 like nobodys business and the 800.4Xt sounds great on the comps and coax speaks....
Is there better out there? Yes there is
Do you have 1000.00 to spend on an amp?? Doesnt sound like it.
Will you be happy with an XT? Im sure you would, ive never had one come back.