5∼15,000 Hz5 \sim 15,000 \mathrm{~Hz}5∼15,000 Hz
0∼20,000 Hz0 \sim 20,000 \mathrm{~Hz}0∼20,000 Hz
20∼20,000 Hz20 \sim 20,000 \mathrm{~Hz}20∼20,000 Hz
25∼25,000 Hz25 \sim 25,000 \mathrm{~Hz}25∼25,000 Hz
