Join Date: Dec 2000
Location: Chicagoland, IL.
Actually it's 3 DB each time you double the power.
Also, you shouldn't confuse overall consumption with output ratings.
Just because an amp will munch 1100 watts of power, has no indication on what the actual output to your speakers will be.
Another side note, to go along with speakers, specifically PA speakers.
Often lower end companies will tout their power 'capacity', but it isn't a real indication of what is delivered to the speakers. Many times, a device called a ballast is installed into the crossover. In most cases, this is nothing more than a light bulb! Whatever energy the speakers cannot accept, the bulb dissipates. Lets say You have a pair of PA speakers with a 1200 watt 'capacity' but the driver compliment can only handle 600 W, a resistor and light bulb eat the remaining power in a burst of light and heat. Not the most honest way to rate a speak IMO. I know for a fact that companies like Yorkville, BOSE and others use this practice.
Last edited by bammbamm; 09-11-2007 at 01:31 PM.