1. yes, but not on the meter. its the difference between acoustic energy and acoustic pressure. that alone bugged me for the longest time. theoretical physics? yes, 3 dB represents a doubling of displacement. isnt it the same with earthquakes, too?

But on the meter, we see a maximum of a 6 dB gain instead!

2. i did some reading and worked out where this misconception comes from, its a wiring issue, changing the wiring of multiple subs can change the efficiency of the overall system, more info can be found here http://www.audioasylum.com/scripts/t...akers&m=185145

in this case we arent changing the efficiency of the system at all, if you consider each sub and amp as a seperate system that outputs 100db (each) then put them both together 100db +100db = 103db, unless someone can explain to me why putting 2 subs near each other magically makes them twice as efficient

3. you know, I reread the original post with a fresh perspective. So I think the realistic perspective we are looking for is what happens in the real world, in the real lanes, with real losses, on a real meter.

In which case everything I've said is totally wrong. to see a 3 dB gain on the meter we would need to double displacement, and probbaly not even get that, since we increase losses as we increase energy in the system.

the particularly hopeless though of all that is that we have to continually double the whole system to get that diminishing gain, so one becomes two, two becomes four, four becomes eight, all needing the same amount of power

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