Alternator and battery worries

i am going to install 2 amplifiers in my Ford Laser Lynx. one for Door speakers, and one for 2 10" subs. I recently changed the stock battery to a new one with the same amperage(60 Amps). The alternator has a total amperage rating of 70 amps.Is it ok to run my 2 amps like this? (the 4 channel one is used for 2 subs, the other amp is for door speakers) any advise would be appreciated.

Depends. 4 channel amps normally don't pull a lot of amperage. First what kind of amps are these? Make and model and specs please? I'd say turn the system up and if the lights dim with the beat than you need to upgrade the alternator. But first redo the big three. It will make a big difference.