Is this amp good Autotek MM 4000.1D for Running 2 15" BTL's?

Question

I want to know if Autotek really gives out the power it states at 1 ohm and i have a E39 with a stock battery which i will be getting changed and my alternator is 120 amp . How much will the alternator cost because i dont think it is good to run 4000RMS at a 120amp Alternator , is it if i have a good battery ?

I want good lows and highs and want to compete in SPL Comps in future so how many hertz should be the box and im going ported. ?

Last Question is that i have 4 Bose Stock Speakers , i was thinking of buying two Alpine speaker pairs each 100 RMS , will it be enough power to hook the Speakers to the headunit and still get enough sound with that much bass ? Pioneer PH-4900 Headunit .

Answer 1

what r the 15" BTL's rated for with 15's you will find that they can handle alot but they don't need that much watts to get that deep clean bass sound we are always lookin for hit me up and i'll try to help if i can't find it none can manger of a radio shack in Fla. so i can find the answers you need!!!, Jon

Answer 2

yea nice find on the amp it would work great but if ur planing on doing comps i would get more than the recomended power for the subs  also your box should be around 8ft^3 tuned to bout 40htz if your running the speakers off the headunit its gunna be under powered i would rec a amp for thos to evan if u bridge the headunit it still wont be enough