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<blockquote data-quote="keep_hope_alive" data-source="post: 8270804" data-attributes="member: 576029">i do, but mine were custom made by an audiologist so they perfectly fit each ear canal and they include flat 15dB filters.&nbsp; flat meaning they don&#039;t muffle sound, they just turn it down by 15dB across the board.&nbsp; great for concerts and loud systems.&nbsp; I use them for work also when around generator sets, large screw chillers, and other mechanical equipment.&nbsp; i used them on Friday when doing acoustic testing of a locomotive.&nbsp; they have separate plugs that make them act like a normal closed set.&nbsp; they are super comfortable as well since they were made from molds taken of my ear canal.&nbsp; it was under $100 for the pair including testing, fitment, and filters.my hearing is pretty good.&nbsp; i had a college with an audiology professor do a 1/3 octave FSPL test from 125Hz-18kHz and got graphs of each ear.&nbsp; very interesting results. i actually administered the test to myself so i could play with level and frequency to find the threshold of perception.&nbsp; i also got transfer functions for each ear.&nbsp; best part - it was free because it&#039;s considered &quot;educational&quot;.&nbsp; i just did a search for audiologists that are associated with college of medicine and found one in Iowa City.</blockquote>

[QUOTE="keep_hope_alive, post: 8270804, member: 576029"] i do, but mine were custom made by an audiologist so they perfectly fit each ear canal and they include flat 15dB filters. flat meaning they don't muffle sound, they just turn it down by 15dB across the board. great for concerts and loud systems. I use them for work also when around generator sets, large screw chillers, and other mechanical equipment. i used them on Friday when doing acoustic testing of a locomotive. they have separate plugs that make them act like a normal closed set. they are super comfortable as well since they were made from molds taken of my ear canal. it was under $100 for the pair including testing, fitment, and filters. my hearing is pretty good. i had a college with an audiology professor do a 1/3 octave FSPL test from 125Hz-18kHz and got graphs of each ear. very interesting results. i actually administered the test to myself so i could play with level and frequency to find the threshold of perception. i also got transfer functions for each ear. best part - it was free because it's considered "educational". i just did a search for audiologists that are associated with college of medicine and found one in Iowa City. [/QUOTE]

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