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db32
1
Apr 10, 2016
Is anyone else getting significant amount of "hissing" with these? I seem to get a static hissing sound when listening to orchestral tracks. Very annoying and unusable. I put in my old MEE IEM's before to compare didn't experience this problem when I tried several songs with them.
AkumaKurono
347
Apr 11, 2016
db32No hissing for me. You sure it's not your source? Orchestral tracks tend to have a high noise floor that causes that hiss. It could very well be your amp/dac.
db32
1
Apr 11, 2016
AkumaKuronoI don't think its the source. I listen to it all the time with a DT880 and m9xx and it sounds perfect. I normally use IEMs with my phone so I hooked up the IEM to the m9xx to see if it was my phone that was causing it. On the m9xx I still get a low hissing sound, though much less pronounced. If this thing was a speaker, I would have pegged it as ground loop noise or a 60hz hum.
AkumaKurono
347
Apr 11, 2016
db32Does the hissing happen when you're idling and not playing music? It sounds to me like you got a more sensitive pair. I have an O2+ODAC and I use my Note 4 to listen to music and I don't hear any hiss at all. Are you using the stock music player on your phone? I also have a Centrance DACPort Slim which I do hear a hiss with just about any IEM I use on it.
Villy
68
Apr 12, 2016
db32Did you burn them and for how long? Or at all? Look at my posts above, based on my experience these need at the least 100 hours of burning time before they start delivering on the promise, and more like 150 hrs.
db32
1
Apr 12, 2016
VillyWell, on a hunch, I checked the ground against the right and left audio channels and got a grand total of 23 Ohms between ground and right/left output (thats JUST Ohms....). When I check it against my other IEM, its several orders of magnitude greater (46-50 kOhms). I'm not an audio engineer but I'm pretty sure a 23 Ohm separation between ground and output is not normal. Time to find out what Massdrop's replacement policy is like.
Villy
68
Apr 12, 2016
db32As I read this must admit I have no clue what you are talking about, not an engineer. But, checking if my cans and iems have proper resistance is something that intrigues me, in fact the more I think about it the more I am convincing myself that I must know how to do it (heck, I have HPs north of 1K and don't even know if the drivers are balanced, or close enough to ignore the dif, plus I own multimeter too). I'll look it up, Thx for the post, very useful!
Villy
68
Apr 14, 2016
Whatever suits your ears dude, ain't here to argue :)
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