Hi everybody - I've learned an awful lot from reading all the posts here on Head-Fi, but I believe I'm having a problem with my E11 that may not have arisen/been addressed yet...
Recently got the ATH-M50s after reading all of the positive reviews written about them here - I think these headphones are phenomenal and could not be happier with them. After listening to almost my entire music collection with the M50s I felt like it was the first time I had heard any of my music before.
Through Head-Fi I then discovered that such things as headphone amps actually exist and there's a rather sizable market for them. I didn't think I'd need an amp with the M50s, but in listening to some old Motown music I remembered having always thought that on certain songs, Jamerson's bass tracks deserved a more prominent place within the mix. I decided a portable headphone amp would perhaps finally give me the option of hearing some of his masterpiece bass lines with the emphasis I felt they deserved. After reading up quite a bit here on Head-Fi I opted to purchase the FiiO E11 portable amp and L9 LOD to link it with my iPhone 4. I got the E11 and L9 earlier today and, after charging the amp, started listening.
Immediately after putting the headphones on, without any music playing, I could hear static / crackles / buzzing.
The extra noises became less prominent when the music started playing however during quiet parts I can still hear the buzzing/crackles, etc intermittently. I tried unplugging the L9 from the iPhone 4 as well as from the E11 and still heard the noises as long as the M50s are connected to the E11. I tried to reproduce the noises by moving the amp and LOD without success; the noises occur spontaneously. I also used the other connector that came with the amp and still heard the noises, which leads me to believe the static/buzzing, etc is coming from the amp. I have continued to listen for a couple more hours and the buzzing / static happens less frequently, but when it does happen I find it incredibly irritating.
In another thread I read that the E11 produces some hiss that is typically noticeable only with higher end IEMs and I don't believe what I'm hearing is hiss. I haven't seen this particular issue raised in other threads... Any thoughts/advice would be appreciated.