| The 2 x 6 inch exponential horn has full 90 included angle horizontal dispersion. With an impdance of over400 ohms at 1kHz, and still above 20 ohms at 40 kHz, the piezo ceramic speaker presents no added load to the amplifier and rejects low frequency power without requiring a crossover network. Electrically, these piezo ceramic speakers appear as 0.3 mfd capacitors and exhibit high efficiency ( 40 - 50% ) in converting electrical energy into acoustical energy. |
