Hifonics BXi 2000 D

[ronck722]

Like your ears and mine - they're both logarithmic and Pulse Rate Modulation. Even with tinnitus, I can sometimes hear down to 18 dB above the A-weighted 1E-16 Watt per square cm reference level. I only worry about the speakers with DC or above a 120 dB SPL.

Now, if you're in a high noise work or military environment, they have to screen you regularly for noise-induced hearing loss (NIHL). As you approach the lifetime (work only) limit of 9.1 Ergs per square cm (per my calculations), by law, you have to switch to a lower noise work environment. I'd prefer to live in an anechoic chamber, where nothing will bother me, except my own beating heart.

On midnight duty, I used to pull my fatigue cap over my eyes and sleep on top of the radar cabinets. Now, I have very sharp notches in both ears at 360 Hz, the Pulse Repetition Frequency of long range radar. They're so sharp, most audiologists miss them.

ron

This should go on a headset stream. In 2019, I searched for Active ANC shooter's headsets. Regardless of what any sales person or so-called expert might try to BS you, there was no such thing, at least for civilians. Far too risky.

Once overloaded, above a 82 or 85 dB SPL, they all resort to their passive attenuation. That's it. No more. No less.

I did a 3 page Word document for a buddy, explaining why.