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Why is it undesirable for a radio loudspeaker to have resonant frequencies in the audio range some cheap AM radio have this problem?
Wiki User
∙ 13y ago
At the resonant frequency, the speaker efficiency is greater so the sound will be louder. For voice radio, a resonance near 2500 Hz might improve intelligibility. For music radio, a resonance at about 200 Hz will enhance the perceived bass from the radio. For high fidelity sound, a flat response from 20 Hz to 20000 Hz is needed. In practice only the highest quality kit comes close to this. Mostly resonance causes unpleasant colouration of the sound. You can learn a lot by playing with the graphic equaliser that ships with many computer sound cards and products like iTunes. Turn up the volume on different frequencies to see what it sounds like.
Wiki User
∙ 13y ago
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