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Speaker Design Suite

Acoustic Engineering Analysis Dashboard (High Density)

Control Center

Enclosure / Load
Thiele-Small Parameters
Hz
Q
Q
L
cm²
mm
Ω
W
Q

10 Physical Equations

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

1. Magnitude Response

System high-pass filter (2nd order in sealed, 4th order in bass-reflex with losses QL=7.0).

2. Acoustic Phase Response

Acoustic phase of the emitted sound pressure, showing port delay at low frequencies.

3. Acoustic Group Delay

Acoustic group delay (ms) derived from phase, critical for evaluating bass transient accuracy.

4. Electrical Impedance Magnitude

Total electrical impedance at voice coil terminals (single peak in sealed, double symmetric peak in bass-reflex).

5. Electrical Impedance Phase

Electrical phase of impedance, illustrating transitions between inductive, capacitive, and purely resistive behavior.

6. Driver Cone Excursion

Driver cone peak-to-peak displacement (mm) at nominal power Pe (unloaded notch observed at Fb).

7. Vent Air Velocity

Air velocity inside the reflex port (m/s). If exceeding 15 m/s, turbulence risk (chuffing) is triggered.

8. Sound Pressure Level (SPL)

Absolute sound pressure level (dB SPL) at 1 meter for the configured input power.

9. Excursion-Limited Max Acoustic Power

Absolute limit of maximum acoustic power (W) that the transducer can deliver before exceeding Xmax.

10. Real System Efficiency

Real system efficiency (%) based on dynamic impedance and acoustic response.