Just to share...not headphone but extreme listening memories..
They (IASCA) techs..
You sit and wait in your car and they will eventually dive into the passengers seat with earplugs or over ear noise killing headcups. they got a dB meter on a rig. They lean a padded pole over your dash and point it at your windshield, the other dude quickly leans in and measures from the windshield to the mic (1-3"??)
The guy adjusts it firmly in that spot while the tape measure guy clears out.
The mic guy looks at you and gives you the thumbs up with a questioning look (you ready)...exchange thumbs up, he gives you the 3,2,1 countdown using his fingers and on 1 you blast your 53Hz (mine) signal for 3-5 seconds. He looks at his rig and gives a thumbs up and disappears.
Was the uber coolness but he never spoke and noted my ear's were naked and pointed at em. I shrugged my shoulders. <<<<moron
I later figured if the sanctioning body was determining that the best point to measure the highest dB was a reflection off the windshield then maybe thats why only my left ear lost hearing temporarily as it was next to the driver window.
Awesome memories but supreme proof of the folly of youth. That/Those IASCA guys musta thought/looked at me like I was crazy...nope just dumb and young.
Protect your ears. Live and learn. If somebody says hello from my left side out of eye range( behind me) I usually miss them and they think I'm being an *******?...No i just can't hear you bro.
Right side? We good to go!!
Ordered the Q 40 last night. Wanna common can with some of ya'll.