Review on Outstanding Piezoelectric Ultrasonic Loudspeaker Waterproof by Ashwin Patel
Incorrect Specifications
Rated 30 Vp-p, Frequency Range 2.5 to 60 kHz. You can't drive these speakers at 30Vp-p at 60kHz because the "impedance" drops drastically after 12kHz. As a result, the current increases sharply, knocking out the drivers.
- Quality Construction
- Requires Socket
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