Originally Posted by sly_in_the_sky
I received my EM4 after 3 times refit and now I think that it's almost perfect...BUT... I don't think there's a fit problem but, when I push a lot more the Ciem in the ear, the isolation is better and the bass response slighty more present...
What is the "normal" and "right" sound? The one without pressure or the other... are my fit problems not finished...
That still sounds like a fit issue, but it may be remedied by using an ear lubricant to create the same seal as you get when pushing the shell in. When most shells are manufactured, they are dry and even though they fit well, they don't seal as well as they do with extended use due to cerumen buildup, but you can speed that process with the ear lubricant.
Or get them slightly larger in the canal, but then you risk discomfort.
Pressure is different as many of my CIEMs require me to pull them back a bit after insertion to relieve the pressure buildup during insertion. I know those fit real well.
Originally Posted by tupac0306
Actually I live in Uk lol:) JH audio did it right for the first time. I guess they use different scan and process technology for making ear molds. Because for my right ear of EM 6, the fitting is wrong for several spots actually so make it impossible to explain to ear sonics again. Never mind:) I can always put them on when my ears are itchy . I think I am done with inserting any more IEMs into my ears (Still waiting for my last one, SE 5 way). Full sized earphones are so much eaiser to handle.
Fit can be a hassle and it seems there are several people with issues as of late. I am not sure why that is, but Earsonics got my EM4 perfect on the first try (thankfully). Other than changing material for my impressions, which does give different results, the results from manufacturers are pretty accurate and I would believe a high % of the issues are due to the impressions themselves. If the company takes a negative, or scans the impression, there really shouldn't be much room for error, but when injecting the impression material in the ear and not pulling back the gun at the best time can lead to canals not being formed perfectly.