Acoustic Lab QC

World-Class Acoustic Laboratory & Total Quality Assurance

Accelerate your product launch with precision COMSOL multiphysics modeling, in-house full anechoic chamber validation, and multi-stress reliability screening.

Key Lab Specs:

  • Cutoff Frequency: < 50 Hz (Full Anechoic Chamber)
  • Noise Floor: < 18 dBA Ambient Background
  • Simulation Engines: COMSOL / FEMM / FINEMotor / LEAP
  • Screening Standard: 100% In-Line LMS & SoundCheck Rub & Buzz

    1: Finite Element Analysis (FEA) Before Tooling

  • Magnetic Circuit Optimization (FEMM): Optimizing T-yoke and top-plate geometry to achieve a highly symmetrical BL(x) curve and minimize flux modulation.

  • Diaphragm Excursion & Modal Control (COMSOL): Predicting cone breakup modes and surround anti-resonance for ultra-smooth off-axis dispersion.

  • Transducer Parameter Tailoring (FINEMotor): Customizing Fs, Qts, and Vas to match specific sealed or ported cabinet volumes.




    2: Full Anechoic Chamber & SoundCheck Acoustic Validation

    • Directivity & Polar Plots: Multi-angle spinorama measurements to ensure wide, consistent directivity for architectural in-ceiling speakers.

    • True Sensitivity & THD Sweeps: High-accuracy SPL frequency response curves and harmonic distortion (2nd/3rd THD) analysis at rated input powers.

    • Phase & Impedance Curve Sign-Off: Precision impedance resonance ($F_s$) and phase tracking to optimize passive crossover network filtering.

    3: Comprehensive Reliability & Environmental Stress Testing

    Continuous 100-hour pink/white noise power burn-in at maximum rated wattage to verify thermal stability of voice coils and crossover inductors.

    Features precise control, real-time curve monitoring throughout the test process, and automatic shutdown upon completion; operates within a temperature range of -40°C to +85°C and a humidity range of 10% to 98%, meeting various requirements such as fixed-value operation and programmed settings.
    Continuous 48/96-hour ASTM B117 salt spray exposure to test anti-corrosion finishes on aluminum grilles, stainless steel brackets, and PCB coatings.

    4: 100% In-Line Production Screening