i can not find the post, but someone posted about using

[GraveDiggerMax-VaBch-Va]

threshold up to 38 - i thought that was high, but

yesterday with the earbuds and the wave noise, i had to crank mine up to 32- today i hunted at 28 all day
fyi

 

[Reeseb]

Watch your ears, man! I would get some some noise-reduction waterproof headphones if I were you.

 

[Buried Crap NJ]

Max I posted something along those lines. With those crappy Koss Headphones I could not even hear the theshold till around 34. I have gotton the Black Widows to work with the Mono plug. I now have mine set about 17 (no waves) but no higher than 20 now. I am hunting an open screen combined tones.
I can't seem to figure out if I am going to get a threshold break on a deep target like hunting with the Excalibur and reverse discimination? Or maybe I haven't dug some of the right iffy tones yet? Gray Drayton lead me to believe that the lower the threshold the better, just like the Excalibur! Everyones thoughts are welcome.
BCNJ

 

[C&RHunter]

threshold up to 38 - i thought that was high, but

yesterday with the earbuds and the wave noise, i had to crank mine up to 32- today i hunted at 28 all day
fyi

It was me. After my first fresh water hunt I saw my threshold was at 38. I have since put it down to 30, but that is listening to the sound here in my house. It may need to go higher depending on the conditions where ever I am in the water next.The other day it was extremely windy and they were running a bobcat nearby. With the waterproof Koss headphones the tone is pretty low, so no extremely loud high pictch sounds to blow out the eardrums.