The Stereo Daily Intelligence

Sonic Defense.

The physics of protection. A visual audit of frequency attenuation comparing the "muffled" slope of foam to the transparent curve of high-fidelity filters.

Hearing Note.

Select a filter to analyze how sound waves are processed before reaching the inner ear. Standard foam often destroys high-end clarity.

Response Curve
Attenuation Map
0 dB
Avg. Reduction
0dB -20dB -40dB Bass Mids Treble
The Foam Problem

Standard foam earplugs attenuate high frequencies far more than lows. This results in a "muddy" or "underwater" sound that ruins the concert experience.

The Hi-Fi Advantage

Acoustic filters use a specialized membrane to lower the volume evenly across the spectrum, preserving the clarity of the music at safe levels.

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