You could use as many amps as you want with "300 WATTS" output. That is not what you are really looking for when asking yourself about power loss. You have to find out how much amperage are your amplifers drawing.
i.e. I have 2 Lanzar amps(one 50watts rms & one is 100watt rms, may not seem like a lot, but if you put them up to any "1000watt" amp today these would make them look like crap) The main and only real problem with them was that each amplifer would draw about 35amps each with no sound coming through. When I turned up the subs it was tested that about 55+amps were being drawn causing my alternator and battery to work VERY hard.
The RF 360a2 are very good amps and will actually put out the power as rated, with very little Amperage. Kenwoods are very "pepy" amps and do give some "juice" with very little amperage drawn as well. If you add a 3 amp and keep with the same type of items you have I would say all you need to add is a 1 farad (maybe 2 farad to be extra safe) capacitor (or also called battery cap)
Good Luck and I hope this helps
i.e. I have 2 Lanzar amps(one 50watts rms & one is 100watt rms, may not seem like a lot, but if you put them up to any "1000watt" amp today these would make them look like crap) The main and only real problem with them was that each amplifer would draw about 35amps each with no sound coming through. When I turned up the subs it was tested that about 55+amps were being drawn causing my alternator and battery to work VERY hard.
The RF 360a2 are very good amps and will actually put out the power as rated, with very little Amperage. Kenwoods are very "pepy" amps and do give some "juice" with very little amperage drawn as well. If you add a 3 amp and keep with the same type of items you have I would say all you need to add is a 1 farad (maybe 2 farad to be extra safe) capacitor (or also called battery cap)
Good Luck and I hope this helps
