The Automation Guy
Known around here
Alright, I'm glad everyone has had a good laugh at my expense ........ (it was deserved).
Obviously sebastiantombs and garycrist are correct. My misunderstanding comes from the fact that audio manufactures typically post their power consumption figures at 1/8th of the max power usage and not 100% power usage. This means the power specs on their websites don't match the "max wattage" rating of their equipment which resulted in my misunderstanding. They do this because the industry has decided that 1/8th power is an accurate representation of what an average amplifier is going use in power in an average situation. Obviously actual power draw will depend on the overall voltage which increases with loudness, but a speaker is never going to draw 100% power all the time - at least not for very long . The manufactures 1/8th power usage specs are pretty accurate and can be used to determine normal power consumption in a typical use setting. In a use case like the OP is suggesting, the power consumption would be well below the manufactures 1/8th specs. This is also why you will really never need 10amps to drive a 100watt 12volt speaker because you will never actually drive the speaker that hard even though Ohms law says that is the power needed.
Obviously sebastiantombs and garycrist are correct. My misunderstanding comes from the fact that audio manufactures typically post their power consumption figures at 1/8th of the max power usage and not 100% power usage. This means the power specs on their websites don't match the "max wattage" rating of their equipment which resulted in my misunderstanding. They do this because the industry has decided that 1/8th power is an accurate representation of what an average amplifier is going use in power in an average situation. Obviously actual power draw will depend on the overall voltage which increases with loudness, but a speaker is never going to draw 100% power all the time - at least not for very long . The manufactures 1/8th power usage specs are pretty accurate and can be used to determine normal power consumption in a typical use setting. In a use case like the OP is suggesting, the power consumption would be well below the manufactures 1/8th specs. This is also why you will really never need 10amps to drive a 100watt 12volt speaker because you will never actually drive the speaker that hard even though Ohms law says that is the power needed.