No Problem to do this, but there are really no amplifiers with an output impedance of 4 ohms on the market. All loudspeaker amplifiers have an impedance of less than 0.5 ohm. Scroll down to related links and look at "Impedance bridging - Wikipedia".
use 4 gauge spade crimp connectors
A power rating is the amount of power a device consumes when operating at full capacity. Typical power ratings of ATX power supplies are 350W, 400W and 500W.
You need to make sure you buy a power supply that is rated for your motherboard. Common ratings are 350w, 400w and 500w.
1000-1200 watt peak amp its rated at 350RMS and breaks at 1200 watts so ether a 500-600RMS should do fine and sound killer
no, you would need to get a new psu.
Yes, provided the bulb types are compatible with the 400 watt ballast.
An electric motor cannot move. It can power something else that does move but you fail to list what it is installed in.
yes, hard drive use around the same amount of power no matter how much disk capacity
The whole purpose of an inverter is to convert DC to AC.Mainly, you should check the voltage of the inverter, and of the battery - they should match.As to the 350 watt: the battery must be able to provide that much power. Check the battery specifications. Actually, it is also possible that you take less power from the battery - it really depends what devices you connect to the inverter.
The average LCD T.V. uses 350W. This meets ENERGY STAR requirements. The average plasma TV uses over 1000watts. In any case, the question doesn't make sense. Watts is a measure of energy flow NOT an amount of energy. In half an hour a 350w TV uses 630,000 joules of energy. A 750watt TV, or any other 750w appliance, uses the same amount of energy in a quarter of an hour. 350watts means 350 joules per second and it makes no sense to say 350watts/second/halfhour. It is a 350w applicance whether it runs for half and hour or a week. It is always 350watts.
A power rating is the amount of power a device consumes when operating at full capacity. Typical power ratings of ATX power supplies are 350W, 400W and 500W.
The speakers will work with any amp that outputs less power than 700 watts.