1 amp per sub?

I am looking at putting in two 12" Alpine Type-R's in (4 Ohm, DVC).  I was wondering if I would benefit from wiring one amp per woofer as to just using one for both of them.  I was looking at using something such as the Alpine MRP-M450 (250 watts RMS x 1 at 4 ohms or400 watts RMS x 1 at 2 ohms).  (Or even upgrade to the MRP-M650), if i were to use one amp per woofer.  Thanks for your input!!!

Correct info. You also double up the amount of wiring used, current drawn, heat output and major issues with matching gains from one amp to the other. Use one single large amp for the job.

I can think of several ways you could benefit, but I agree with the above as sheer simplicity goes.  You could be in a situation where:

• you want to consider the load.  Using two mono amps would put a nice 2 ohm load onto each one. 
• you might want the look of a multi-amp system.
• you could install a switch on one of the remote wires so that on some days...or before you pull into your parent's driveway....you could switch one of the amp/subs off and just use one.
• you might not particularly want to run an amp at it's max 1 ohm rating
• you might find the price of two amps considerably less than one amp that is four times more powerful (in order to run a 4 ohm load onto it for the same power).

I see more of a benefit in using two separate mono amps for subs than one two-channel amp, as far as power-draw vs. power-produced goes.  So I would look more toward using two class D amps with two DVC 4 subs than one larger class A/B amp.  When you set the gain for each amp correctly as you need to, the amps don't have to "match" each other, so I don't see how that has anything to do with it.  Every gain has to be set using the same procedure anyway whether it's one gain on each mono amp or two gains on a two-channel amp or one gain on a larger amp.  Any and all are set to the head unit output.

You can see that there can be benefits and problems in either way you do it.  Problems can be overcome with a good installation, though.

If your going for looks get 2 amps and spend the money to install them properly. If space is a concern use 1 amp with more power. You may get 2 smaller amps cheaper but it will equal out in cost of installation to 1 bigger amp. IMO get 1 amp with enough power to pushem'.