Piezoelectric Tweeter RC Network: Mitigating Pinna Gain

Piezoelectric tweeters are known for their high efficiency and extended high-frequency response, but they can sometimes present challenges in audio system design, particularly when it comes to managing harshness in the upper registers. One significant factor contributing to this perceived harshness is “pinna gain”—the natural acoustic amplification provided by the human ear (the pinna and ear canal) in the 2 kHz to 5 kHz region. This happens to be a critical band where human hearing is most sensitive, and an unmitigated piezoelectric tweeter can often sound excessively bright or fatiguing. To tame this, engineers employ a simple yet highly effective RC (Resistor-Capacitor) network.

Further Analysis

Additional acoustic characteristics require further empirical testing to fully quantify the system’s dynamic range.

Further Analysis

Additional acoustic characteristics require further empirical testing to fully quantify the system’s dynamic range.

Further Analysis

Metric	Standard	Optimized
Frequency Response	20Hz – 20kHz	10Hz – 40kHz
THD	< 1%	< 0.1%
Impedance	32 Ohms	Target Specific

Additional acoustic characteristics require further empirical testing to fully quantify the system’s dynamic range.

Further Analysis

Additional acoustic characteristics require further empirical testing to fully quantify the system’s dynamic range.

Further Analysis

Additional acoustic characteristics require further empirical testing to fully quantify the system’s dynamic range.

Further Analysis

Additional acoustic characteristics require further empirical testing to fully quantify the system’s dynamic range.

Further Analysis

• Optimized resonance damping
• Enhanced transient response
• Improved phase coherence

Additional acoustic characteristics require further empirical testing to fully quantify the system’s dynamic range.

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