The Rockford Fosgate R150-2 2-channel amp puts out 50 watts RMS per channel to your speaker system, or you can bridge it to supply 150 watts RMS to a subwoofer.
The electrical watt rating of the inverter is different than that audio watt output of the amplifier. Your best bet would be to go to the Rockford Fosgate website and look at the electrical requirements for the amp. Even though the amplifier is rated at 1200 watts, it will consume more. The manufacturer will probably give the power consumption in amps, or at least the size of fuse to use in the power supplied to the amplifier. Use the following equation to calculate the power required for the amplifier. P (watts) = I (amps) x V (volts). For instance if the manufacturer says use a 120 amp fuse and you are using 12 volts in a car, it would be P = (120) x (12). P = 1440 watts. You would need a power converter that can supply at least 1500 watts continuously to feed enough power. You can always use a bigger converter because the amplifier will only draw what it needs. There is also one more issue, if you are converting from 120 V from the house, to 12 V for a car amplifier, you need to make sure that you are plugged into an outlet that can handle the load. If you are supplying 1500 watts on the 12 V side and you plug it into the house 120 V the voltage is approximately 10 times more. This means that the amperage will be 10 times less. so 120 amps at 12 volts = 12 amps at house voltage, so any normal outlet should handle it; however, if you find a larger converter like 2500 watts, the current would be I = P/V: I = (2500W)/(120V) I = 20.8 amps. Most house outlets can handle 15 to 20 amps. You run the risk of popping a breaker.
Series is better, it can handle more flow to it.
Switcher Multimedia Computer Integrated Amplifier can handle that.
The speaker impedance does not match the amplifier's specified speaker impedance.
If you have more speakers than the receiver has outlets for, you can't use them. Connecting more speakers than the amplifier is designed to handle will shorten the life of the amplifier and possibly result in a over-current shutdown.
Most power amplifiers will handle a load of 6 ohms. The spec you need to look at is the power handling of the speakers. If they are rated for 100 watts program power, then look for an amplifier rated for 100 watts RMS output. Any amplifier can be connected with adapter cables to the typical 1/8" output of your computer.
Running all these speakers at the same time might damage the amplifier. There are switchers made to handle this task.
You get more power by wiring the speakers in parallel, but you need to verify that the amplifier can handle that configuration or you may blow the amp.
There are many different ways that you could wire two dual voice coil subwoofers. Depending on how you connect the voice coils, you could have 1ohm (all coils in parallel), 4ohms (parallel-series combination). Technically you could wire them for 16ohms (all in series), but this isn't done in practice because an amplifier won't provide much power to a 16ohm load. You should wire the subwoofers to make an impedance (which is the 'ohms') which will match your amplifier. Not all amplifiers can handle 1ohm, so you may need to wire the subwoofers for 4ohms. Be sure to do some research on this before wiring anything up or you could damage your amplifier. For some helpful wiring diagrams, check out the Fosgate Wiring Wizard: http://www.rockfordfosgate.com/rftech/woofer_wizard.asp?submitted=true&woofer_qty=2&woofer_imp=4
Technically, yes. Practically, no. Amplifiers and speakers are rated by the maximum amount of power (and at what impedance) they can handle. A 1200 watt amplifier will eventually destroy a 1000 watt speaker if it is operated at maximum power. In normal use, however, you rarely even get close to maximum rating.
The question should be, can the two 15 inch sub-woofers handle 900 Watts? The speakers should have a power rating marked on them. If the speakers can handle 900 Watts, and they are suitably impedance matched with the amplifier, there should not be a problem.
Yes. The "275W" is the maximum power that the speaker can handle at its input. The "120W" is the maximum undistorted power that the amp can deliver in the loud spots with the volume wide open. So the amplifier will never overdrive the speaker. The impedances of the speaker and amp-output should match. If one of them is marked "4 ohms", then they both should be. If they're not the same, then . . . -- the speaker may not sound as 'crisp' as it should. -- the amplifier may not deliver as much undistorted power as it should. -- the amplifier may not run as cool as it should. -- with an extreme mismatch and extended loud spots played at high volume, the amplifier may even be damaged.