1. Mechanical Suspension Compliance ($C_{ms}$)
$$C_{ms} = \frac{V_{as}}{\rho_0 c^2 S_d^2}$$
Result: — mm/N
2. Acoustic Box Compliance ($C_{ab}$)
$$C_{ab} = \frac{V_b}{\rho_0 c^2}$$
Result: — m³/N
3. Resonance Frequency of Closed System ($F_c$)
$$F_c = F_s \sqrt{\frac{V_{as}}{V_b} + 1}$$
Result: — Hz
4. Quality Factor of Closed System ($Q_{tc}$)
$$Q_{tc} = Q_{ts} \sqrt{\frac{V_{as}}{V_b} + 1}$$
Result: —
5. Reference Electroacoustic Efficiency ($\eta_0$)
$$\eta_0 = \frac{4 \pi^2 F_s^3 V_{as}}{c^3 Q_{es}}$$
Result: — %
6. Reference SPL at 1m ($SPL_{2.83V}$)
$$\text{SPL}_{2.83V} = 112.2 + 10 \log_{10}\left(\frac{F_s^3 \cdot V_{as\_m3}}{Q_{es}}\right)$$
Result: — dB @ 2.83V
7. Required Vent Physical Length ($L_p$)
$$L_p = \frac{c^2 D_p^2}{16 \pi F_b^2 V_b} - 0.732 D_p$$
Result: — cm
8. First Port Standing Wave Resonance ($F_{pipe}$)
$$F_{pipe} = \frac{c}{2(L_p + 0.613 D_p)}$$
Result: — Hz
9. Peak Vent Air Velocity at Tuning ($v_p$)
$$v_p \approx \frac{\sqrt{2} \cdot 2 \pi F_b \cdot X_{max} \cdot S_d \cdot \sqrt{P_e / R_e}}{S_p}$$
Result: — m/s
10. Excursion-Limited Max Acoustic Power ($W_{max}$)
$$W_{max} = \frac{\rho_0 \pi^3 F_s^4 (S_d \cdot X_{max})^2}{c}$$
Result: — Watts