Well, I had this problem with my E17 to where if I moved my cable in a certain direction I would lose my right channel in my headphones. Fortunately I have found out the reason why, and a solution to fix it. The reason why it's loose is because the plastic shroud that actually holds the plug in place has become disconnected. Whenever I pushed my cable down, the plastic shroud would move up in conjunction with the headphone cable. So, you just need to force it to stay down. All you need to do is put something between the headphone jack inside the case and the top of the casing. I used some tape folded up, and jammed it in there. After that, I can move around my headphone plug all I want and there is nothing wrong with it. 
 
I'm probably not going to take any pics of it because the screws are on the verge of being stripped, and I don't want to screw (lol) them up as much as they already are, but the procedure is pretty straightforward once you experience it for yourself. 
 
So, for any users out there that have the headphone jack problem, try doing this before returning it for repairs. A few minutes of DIY is better than waiting a month on repairs.
 
This may be the same for the E7, but I don't have a small star shaped screwdriver to verify. My headphone jacks are messed up on that one too. 

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gofre said:

Quick question guys- for my desktop setup, I have a MacBook Pro>>FiiO E17 (Via USB)>>JDSLabs C421 Amp (Via L7 Line Out adaptor)>>My speakers/iPod Dock. Every piece of the setup has its own volume and EQ settings. Is there any particular "protocol" in such setups on which I should use as the primary device for making adjustments, for example should I have the volume turned down to a minimum on everything and use the speaker's/MBP's etc controls, or does it not particularly matter? Any insight would be greatly appreciated [=

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Yes use the JdSlabs amp as the full amp. The volume control on the E17 should not be activated, if it is, keep it at max. I'm not sure if the LO bypass switch changes this. Keep your computer at 100%, E17 at 100%, and speakers and dock and ipod at 100%. Use the JDSLabs amp to control volume.

Hey guys, I've been using my E17 for the past 5 months and it has served me well in driving my srh940, dt250 and hd650.
Now however, I just ordered a HD800 and am wondering whether the E17 is able to handle the "King of Dynamics". I know that Fiio's website indicates that it is able to handle a headphone impedance of 300ohm and that the HD800 is supposedly 300ohm. But when checking Tyll's measurements at Innerfidelity, the HD800 is most definitely above 300ohm at every frequency. So, will the E17 be able to make the HD800 sound at least decent? Bear in mind that this is only short term as I plan to get a Matrix M-Stage in the future (that is if the E17 barely makes the cut).
 
By the way, based on what I read, is it true that the Pico portable amp has less power output than the E17? I can't find technical data on the Pico to compare with the E17 and would like someone to shed some light on this.

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ryujen said:

Hey guys, I've been using my E17 for the past 5 months and it has served me well in driving my srh940, dt250 and hd650.
Now however, I just ordered a HD800 and am wondering whether the E17 is able to handle the "King of Dynamics". I know that Fiio's website indicates that it is able to handle a headphone impedance of 300ohm and that the HD800 is supposedly 300ohm. But when checking Tyll's measurements at Innerfidelity, the HD800 is most definitely above 300ohm at every frequency. So, will the E17 be able to make the HD800 sound at least decent? Bear in mind that this is only short term as I plan to get a Matrix M-Stage in the future (that is if the E17 barely makes the cut).
 
By the way, based on what I read, is it true that the Pico portable amp has less power output than the E17? I can't find technical data on the Pico to compare with the E17 and would like someone to shed some light on this.

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It's not going to handle the HD800, but it will be around decent and lower than average. The HD800 are decent with my 800$ DacMini, but great with Lyr.

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dukeskd said:

It's not going to handle the HD800, but it will be around decent and lower than average. The HD800 are decent with my 800$ DacMini, but great with Lyr.

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Thanks for the quick reply. I did consider Schiit's product line but they all look too bulky for me (my table doesn't have much space). I'm thinking of using the E17 as a DAC only and using the line out to hook it up to something like the Matrix M-Stage or ALO Rx mk2. Any thoughts?

Quote:

ryujen said:

Hey guys, I've been using my E17 for the past 5 months and it has served me well in driving my srh940, dt250 and hd650.
Now however, I just ordered a HD800 and am wondering whether the E17 is able to handle the "King of Dynamics". I know that Fiio's website indicates that it is able to handle a headphone impedance of 300ohm and that the HD800 is supposedly 300ohm. But when checking Tyll's measurements at Innerfidelity, the HD800 is most definitely above 300ohm at every frequency. So, will the E17 be able to make the HD800 sound at least decent? Bear in mind that this is only short term as I plan to get a Matrix M-Stage in the future (that is if the E17 barely makes the cut).
 
By the way, based on what I read, is it true that the Pico portable amp has less power output than the E17? I can't find technical data on the Pico to compare with the E17 and would like someone to shed some light on this.

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No disrespect towards the E17 or HD800...but powering your HD800 with the E17 is like filling a Bugatti Veyron with cheapo reglar gas. It'll run but it won't bring out it's full potential.

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jono454 said:

No disrespect towards the E17 or HD800...but powering your HD800 with the E17 is like filling a Bugatti Veyron with cheapo reglar gas. It'll run but it won't bring out it's full potential.

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Yes my thoughts exactly (although I prefer the Aventador ) but this setup will only be used until I can find an amp that can properly handle the HD800 that isn't too expensive (<$500) or too bulky.

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ryujen said:

Yes my thoughts exactly (although I prefer the Aventador

) but this setup will only be used until I can find an amp that can properly handle the HD800 that isn't too expensive (<$500) or too bulky.

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Have fun, the next time I move up to more expensive can's I'll be looking at Schiit and some others. I'm thinking of just getting their amp and using my E17 as a DAC...as many $500+ DAC's use the same WM8740 used in the E17 and many members have chimed in that those chips....are hard to tell a difference with for most members (to justify the price)
 
E17-->FiiO L7-->Asgard or Valhalla-->??headphone.
 
That would take $1K out of my wallet >_< so this would be in a few years when my situation gets .....better.
 
ASUS ROG is nice 

Quote:

bowei006 said:

Have fun, the next time I move up to more expensive can's I'll be looking at Schiit and some others. I'm thinking of just getting their amp and using my E17 as a DAC...as many $500+ DAC's use the same WM8740 used in the E17 and many members have chimed in that those chips....are hard to tell a difference with for most members (to justify the price)
 
E17-->FiiO L7-->Asgard or Valhalla-->??headphone.
 
That would take $1K out of my wallet >_< so this would be in a few years when my situation gets .....better.
 
ASUS ROG is nice 

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Hopefully in a few years there would be more competitors in the DAC/AMP market for us to play with!

Quote:

ryujen said:

Yes my thoughts exactly (although I prefer the Aventador

) but this setup will only be used until I can find an amp that can properly handle the HD800 that isn't too expensive (<$500) or too bulky.

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Schiit Lyr or Hifiman Ef5 are both under 500. You can probably get them under 300 on the for sale forum. Both have more than enough power to drive the HD800s

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jono454 said:

Schiit Lyr or Hifiman Ef5 are both under 500. You can probably get them under 300 on the for sale forum. Both have more than enough power to drive the HD800s

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The Lyr and Valhalla seem like a good buy and it would be interesting to see how tube amps sound like. Only issue is that they are just too big for me to transport them in a luggage bag every few months (I travel a lot). I'm looking for something that has enough power for the HD800 and it doesn't necessarily have to be portable but rather, "transportable". I'm thinking of something along the lines of the Pico portable amp or ALO Rx mk2.

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ryujen said:

The Lyr and Valhalla seem like a good buy and it would be interesting to see how tube amps sound like. Only issue is that they are just too big for me to transport them in a luggage bag every few months (I travel a lot). I'm looking for something that has enough power for the HD800 and it doesn't necessarily have to be portable but rather, "transportable". I'm thinking of something along the lines of the Pico portable amp or ALO Rx mk2.

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hahah that changes everything. Well i have the EF5 and it's not as big as it looks...but it is rather heavy. 
 
There's a few guys here that have 'portable' rigs with their HD800s. I think one of them was named torontoraccoon...maybe ask him for some pointers haha

Hello everyone,
Can fiio e17 power up beyerdynamic dt990 pro? Is good, below/above average or bad for these cans?

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unknwn said:

Hello everyone,
Can fiio e17 power up beyerdynamic dt990 pro? Is good, below/above average or bad for these cans?

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yes it can.  easily I would say, considering they drive my dt880 pro well. 

I've had my E17 for about a week and I think it's gotta be one of best bang for the buck pieces out there. Last night I was stunned at how well it drove my k702s using the L9 out of my iPod. I never imagined an iPod could sound so good. My files are all Apple lossless and I played a variety of styles--rock, classical, jazz, acoustic. They all sounded fantastic with those terribly hard to drive phones.