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To calculate the current in amps for a device operating at 2000 watts RMS, you need to know the system’s volts. The formula to find current is I = P/V, where I is current in amps, P is power in watts, and V is voltage. If we assume a voltage of 12 volts (a common car audio voltage), we can calculate the current as follows:

2000 watts RMS / 12 volts = 166.67 amps

However, since it’s not possible to have a partial amp, you would need a 200 amp alternator at minimum to power a 2000 watts RMS system at 12 volts. It’s important to ensure the power system is capable of handling the load to avoid potential damage.