Heavier panel absorbers resonate at lower frequencies

Evidence

For the panel absorbers, the mass per unit area of the panel is directly related to the effective mass, so heavier front panels result in a lower resonant frequency. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2054

Categorization

• DEFINE: Introduces the panel-absorber mass-resonance relationship, a core acoustic-treatment concept.
• corroborated: 2 independent passages support this claim — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2054
• XREF: connects to: Deeper rear cavities and heavier panels lower a resonant absorber’s tuning frequency — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2052; Panel absorbers convert sound into internal friction and respond to pressure — David Howard, Jamie Angus, coustics and Psychoacoustics, 2100