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The Tonmeister
Test
Yes, it's the old inverse square law which states that double the distance requires 4 x the power, so Fritz would
have to pay four times as much - £400.
Question 7
Fritz passes his exams, but he cannot get a job, so he starts his own small PA hire firm. His first
small system cost him £100 and has an output of just one hundred Watts and generates 100dBA at a distance of ten meters.
Fritz wants to buy more of the same system and the prices have remained the same. How much will Fritz have to spend
in total (including the cost of his present system) so that . . .
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the sound level is 110dB at 20 meters?
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£100
£200
£300
£400
£600
£1,000
£2,000
x
£3,000
x
£4,000
x
£6,000
£10,000
£100,000
£1m
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