I have a Sony Xplod XM-1652Z 1000 W. I am using it to power my 2 Infinity 10" subs with 1052 watts on each Max. My problem is that when i turn on the volume too high the subs would stop working. My friend told me that its the amps' prob, can you guys tell me how I can fix this?

Sony audio products are not worth the buck, you will be facing worst problems in the future, my advice is just to change the amps. It is causing the problem, it cant handle frequencies when volume is turned up. and it may say 1000 watts but actually this is the peak rating your amp can handle thus meaning that it couldnt handle constant high volume usage, try crunch, kicker or hifonics amp, and look at the RMS rating on the amps when shoping.