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<blockquote data-quote="Doxquzme" data-source="post: 8879143" data-attributes="member: 689267">The power or efficiency aspect is referenced at 1 watt/1 meter in an anechoic chamber. and, it’s the standard for assessment. For reference, this assumes that all parts of the equation are equal, driver make, model, etc. and only difference is the power or the efficiency. The ear perceives a doubling of the volume at roughly 9-10 db. Starting with a base line at 2500 watts of input power, the math looks like this:2500 to 5000 watts, you get a 3 db gain or a 33% increase in volume.5000 to 10000 watts, another 3 db gain or a 66% increase in volume10000 to 20000 watts, another 3 db gain or a 99% increase, a doubling of the volume to the ear. That is a 8-1 ratio, in a perfectly quiet anechoic chamber with a mic placed 1 meter from the speaker.So whether it’s the same wattage to a speaker that is 3 db more efficient or the same efficiency with increased power, the math applies either way. In a car environment, it will be much less that these results obtained in an anechoic chamber. Those subs on 5k should blow the windows out! Save the coin and buy my Surge 2000.4 for the rest of the gear! Jk, but no, really, save the money and use it other places in the system.</blockquote>

[QUOTE="Doxquzme, post: 8879143, member: 689267"] The power or efficiency aspect is referenced at 1 watt/1 meter in an anechoic chamber. and, it’s the standard for assessment. For reference, this assumes that all parts of the equation are equal, driver make, model, etc. and only difference is the power or the efficiency. The ear perceives a doubling of the volume at roughly 9-10 db. Starting with a base line at 2500 watts of input power, the math looks like this: 2500 to 5000 watts, you get a 3 db gain or a 33% increase in volume. 5000 to 10000 watts, another 3 db gain or a 66% increase in volume 10000 to 20000 watts, another 3 db gain or a 99% increase, a doubling of the volume to the ear. That is a 8-1 ratio, in a perfectly quiet anechoic chamber with a mic placed 1 meter from the speaker. So whether it’s the same wattage to a speaker that is 3 db more efficient or the same efficiency with increased power, the math applies either way. In a car environment, it will be much less that these results obtained in an anechoic chamber. Those subs on 5k should blow the windows out! Save the coin and buy my Surge 2000.4 for the rest of the gear! Jk, but no, really, save the money and use it other places in the system. [/QUOTE]

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