[lazyredhead]

could it power a SHR750DJ?

 

[dfkt]

With an impedance of 32 Ohm and a sensitivity of 106dB the SRH750 can be driven by any MP3 player without the need of an additional amp.

 

[HxCKhaos]

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With an impedance of 32 Ohm and a sensitivity of 106dB the SRH750 can be driven by any MP3 player without the need of an additional amp.

Would it make any difference though?

 

[JamesFiiO]

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Yes, it's an excellent deal- the build quality is that of a disposable item, but I guess that's what I paid for. I leave it in a padded pouch in my backpack where it stays protected. Over time vibrations have caused the screw to work its way out and the metal on the screw head is soft so that my multiple attempts to secure it have stripped it over time. No idea about the button, it could simply be misaligned due to the way the plastic endcaps have shifted out of their original positions with time.
 
My next portable amp purchase will likely be for something built to last. I'm tired of buying cheap components of OK quality only to throw them out a year or two down the road when they fall apart.

I guess the main reason is cause by the battery, it is not about expensive or cheap, because you know iPod/iPhone/iPad all used build in battery! but we already decide to develop a new amp, with better SQ and replaceable battery ( NOKIA BL-5C)
 
Anyway, we sold out so many amp, depend on the data of RMA, the defective rate is below 1.0%.  the main problem is about battery and 3.5mm jack!

Just an update to my post: after many hours of research into portable DAC/AMPs, I have decided that the Fiio E7 offers undeniable value for the money. The Leckerton UHA-6S was at the top of my list but I've decided to try the E7 first. I know the E7 won't hold a candle to the performance of the UHA-6S but at this point in time I can't afford to blindly purchase such an expensive item without trying the E7. The E7 appears to be built well enough to hold up to normal use.
 
I was finally convinced to give it a try after I was able to track down a picture of the interior of the E7. As a computer engineer in training such photos are critical to my purchasing decisions. Fiio, you have nothing to hide- why not include these images on your website?
 
I now know that the top-right jack is probably the best of the two. My only concern is that the Wolfson DAC chip appears to be misprinted- I hope the white mark indicates that QC caught it and determined it to be a genuine IC. Such misprints are often a good indicator of counterfeit parts. I'm not accusing Fiio of anything shady- just making an observation.
 
If I decide to keep it I'll probably replace the Chengx capacitor with a low ESR product from Japanese brand. I'll post higher resolution pictures of the insides in a relevant thread if/when that happens but the E7 hasn't even been ordered yet.
 
I still believe that the overall quality of the E5 is on par with what I paid, which was very little. It simply isn't built to last for more than a few years which is understandable for the price.
 
Edit: I forgot to mention that the inclusion of a silicone case and carrying pouch weighed heavily into my purchasing decision. I wish to keep my equipment in good shape and these accessories will help me achieve that goal. 

1, We had not made any change on the WM8740, I think the photo is not so clear so you can saw the full printed!  it is marked by laser!
 
2, We had already used ELNA capactor from Japan, which is for audio kind and with low ESR! but I think you can change some other components, and don't forget share your discovery!
 
 

 

[JamesFiiO]

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With an impedance of 32 Ohm and a sensitivity of 106dB the SRH750 can be driven by any MP3 player without the need of an additional amp.

Would it make any difference though?

There are two kinds of headphone amplifier!
 
one is mainly to amplify the power of the music signal so it can drive some headphones which need more power!  and the target is to keep the neutral sound with any distortion !
 
one is mainly to color the sound,  for example, tube amp , and some special portable amp which design to use with IEM! in fact, most IEM don't need a amp and work well with portable DAP!

 

[kiwibuddy]

Any ideas that this is any good when paired with the Denon AH-D7000s?

 

[Anaxilus]

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Any ideas that this is any good when paired with the Denon AH-D7000s?

Uhh, I would really invest in something better to mate w/ the D7000 myself.

 

[MCC]

 
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Any ideas that this is any good when paired with the Denon AH-D7000s?

$1k headphones with a $20 amp. Errrrr..... NO. The E5 is a decent sounding amp for the price but it certainly isn't Hi-Fi.

 

[mcwelja]

How will FiiO E5 work with Nokia 5800?

 

[mcwelja]

Sry double post :S

 

[shorty920]

Running an E5 from my Samsung Captivate, what would the E5 work better with? DT 770 pros (80 ohm), DT 770 32ohms or Denon D1100's?

 

[teknov]

I just got the E5 today great little amp I also have the 1100's and tried it with them and a little difference not much though. The sound is a bit clearer. I tested it with the iPhone 4 and it drives them fine! I just got the yuin pk2's and them amp does improve the bass and a bit of the highs and mids.

 

[Clincher09]

I've ordered an E5 and had a few questions. First, I ordered from DealExtremem and was wondering how long it usually takes them to ship. Second, I'm looking into getting a pair of Audio Technica M50s, would these phones coupled with the E5 make the bass unbearable? 

 

[Anaxilus]

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I've ordered an E5 and had a few questions. First, I ordered from DealExtremem and was wondering how long it usually takes them to ship. Second, I'm looking into getting a pair of Audio Technica M50s, would these phones coupled with the E5 make the bass unbearable? 

Only if you use the bass boost.  Honestly even w/ bass boost it would probably be less bass than Beats or the Sony XB series.  They really aren't bass monsters IMO.  There is a difference between drinking protein shakes and injecting steroids.

 

[teknov]

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I've ordered an E5 and had a few questions. First, I ordered from DealExtremem and was wondering how long it usually takes them to ship. Second, I'm looking into getting a pair of Audio Technica M50s, would these phones coupled with the E5 make the bass unbearable? 

I personally would get the Denon 1100's over the M50's. I tried the M50's and the bass wasn't really there they do have great mids and highs. The Denon 1100's have all that. At first it was lacking in the mids section but after about 100 hrs of burn in it really came to life and it so comfy can wear it all day!