BICSI
RCDD-001 · Question #198
Using the sound pressure level (SPL) method of approximating distance and power, calculate the power required to produce 89 dB at 4 m (13.1 ft) with a loud speaker that is rated at a SPL of 95 dB…
The correct answer is C. 4 watts. See the full explanation below for the reasoning.
Question
Using the sound pressure level (SPL) method of approximating distance and power, calculate the power required to produce 89 dB at 4 m (13.1 ft) with a loud speaker that is rated at a SPL of 95 dB. What input power level (in watts) is required to appropriately power the speaker?
Options
- A1 watt
- B2 watts
- C4 watts
- D8 watts
How the community answered
(25 responses)- A12% (3)
- B4% (1)
- C80% (20)
- D4% (1)
Community Discussion
No community discussion yet for this question.