The amplifier's power rating refers to the maximum power it can deliver to the subwoofers. However, the subwoofers' RMS power rating refers to the continuous power they can handle without being damaged. If the amplifier's power output exceeds the subwoofers' RMS power rating, the subwoofers can be damaged.
In this case, the amplifier can deliver a maximum power of 1200 watts, while each subwoofer has an RMS power rating of 300 watts. Therefore, the total RMS power of the four subwoofers is 1200 watts, which matches the amplifier's maximum power output.
However, it is generally recommended to use an amplifier with a power rating that is slightly higher than the total RMS power of the subwoofers. This is to ensure that the amplifier has enough headroom to handle the subwoofers' power demands, especially during peak transients. In this case, it would be better to use an amplifier with a power rating of at least 1500 watts.
Additionally, it is important to consider the impedance of the subwoofers and the amplifier. The subwoofers must have an impedance that is compatible with the amplifier's output impedance. If the impedance is not matched, the amplifier can be damaged.
In summary, while it is technically possible to run four 300-watt RMS subwoofers on a 1200-watt amplifier, it is not recommended. It is better to use an amplifier with a power rating that is slightly higher than the total RMS power of the subwoofers and ensure that the impedance is matched.
