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FiiO E3 3.5mm Earphone Volume Booster Power Amplifier (White)

Price: $6.49 free shipping Satisfaction Guaranteed - or your money back


SKU 14303
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Manufacturer's product description:
The smallest portable headphone amplifier in the world!
Improves the sound quality for MP3 MP4 Players Computers or Mobile Phones when using earphones or headphones.
Save your player battery and lengthen the play time when playing music.
It’s not about volume but Quality. A great pair of headphones can change you're listening experience--but only if they are driven well and properly powered. Put an E3 Headphone Amplifier between your music source and your favourite pair of headphones or earphones for an awesome personal listening experience right between your ears.
Designed for high impendence and low sensitivity headphones, with bass boost function;
Small and easy to carry and use in the outdoors;
Increase your music player's play time;
Uses only one AAA battery, for 20 hours playtime.

Specifications:
Output Power 70 mW (32 ohms Loaded)
12 mW (300 ohms Loaded)
Signal to Noise Ratio >= 90 dB (A Weight)
Distortion < 0.05% (10 mW)
Frequency Response 10 Hz - 40 kHz
Suitable Headphone Impedance 16 ohms - 300 ohms
Weight 11 grams (without battery)
Power Supply 1 AAA Battery
Dimensions 55 mm x 23 mm x 14.5 mm




Visitors' Ratings Return to top    
(31 votes, submit rating)
Reviews Return to top    
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Showing latest 4 entries. Click here to read all 17 reviews.

Displaying reviews posted by certified DX gadget owners first, followed by all other posted reviews.

Ownership verified by DX Mediocre sound quality and poorly built
Posted by Inocybe on 6/29/2009
Involvement: Expert (understands the inner workings) - Ownership: more than 1 month

Price: starstarstarstarstar
Ease of Use: starstarstar
Build Quality: starstar
Usefulness: starstar
Overall Rating: starstarstar

Pros: - Cheap
- Does rise the sound level a little
- Nice box

Cons: - Mediocre sound quality
- Far from rated power boost
- No volume control, always on max
- Very poor shielding
- Strange battery handling

Other Thoughts: Comes in a very nice, high quality looking box. The booster itself looks OK, and is glued shut (but I opened it anyway).

Bottomline: This one was a mistake! The amplifier looks OK in it's plastic form, and so does the box. But it stops there. The sound quality is mediocre, far from what many other boosters can do.
The boost level is far from what is rated. My 2x18mw iRiver produces as much gain as this one, and with much better control. And yes, I have given it a high enough in-signal ;)
WARNING!! It's unshielded. So, if you're planning to use it with a mobile phone, it may pick up those beep beep noises. since the sound level is always on max, this will produce an extremely loud noise into your ears. Happened to me, and my ears was ringing afterwards. tested this with three different mobile phones. it picked up all three.
It has no volume control. This means that it's always on max. Not good for battery life, and not good at all for signal noise.
It uses a single AAA, this is good. But, that also limits it's power boost. A 3.6v booster should deliver more boost, with better control. One strange thing; When the battery power gets low, the output (or the led) doesn't get weaker. In stead it simply shuts off at times, and starts again to continue.
If you don't care about good sound quality, don't plan to use it with (or near) a mobile phone and need a little power boost, this may be for you. For the rest of you, stay away!

Ownership verified by DX Awesome product!!!
Posted by mc899ftjesus on 6/22/2009
Involvement: General (knows how to use it) - Ownership: more than 1 month

Price: starstarstarstarstar
Ease of Use: starstarstarstarstar
Build Quality: starstarstarstarstar
Usefulness: starstarstarstarstar
Overall Rating: starstarstarstarstar

Pros: Everything! It provides great sound quality, a boost in volume and a bit more in the low end. And at this price it really can't be beat. Great build quality, no worries about putting it in your pocket. And it's tiny so it can go anywhere.

Cons: None

Other Thoughts: I bought this a bit before the E5 came out. And I think that the E5 is a steal for the price that it is on here. But if you just want something cheap and don't need the extra features buy this one.

Bottomline: It's compact, sounds amazing, and it's cheap... buy it!

Ownership verified by DX Great thing to have for 7 bucks
Posted by NetRunner7 on 2/10/2009
Involvement: General (knows how to use it) - Ownership: 1 day to 1 week

Price: starstarstarstarstar
Ease of Use: starstarstarstarstar
Build Quality: starstarstarstar
Usefulness: starstarstarstarstar
Overall Rating: starstarstarstarstar

Pros: It amplifies volume by a little (so lower energy consumption on your mp3 player) on on almost every headphones it shows some improvement.It works good with Philips She-9500 , Koss The plug and finally on my AKG K-530 it works wonders. Absolute must for any headphones that somewhat lack bass

Cons: No power switch - you have to plug out your headphones to turn it off

Other Thoughts: Headphone jack might get damaged by constant plugging your phones in and out

Bottomline: One of the best ways to spend 7 bucks

Ownership verified by DX Cheap and improves your music very nicely!
Posted by superrob on 1/12/2009
Involvement: Expert (understands the inner workings) - Ownership: 1 week to 1 month

Price: starstarstarstarstar
Ease of Use: starstarstarstarstar
Build Quality: starstarstar
Usefulness: starstarstarstarstar
Overall Rating: starstarstarstar

Pros: Amplyfies the input into alot clearer and louder output.
Really boosts bass and makes my ipod earphones sound alot more expensive.
It has a Apple style design which goes nicely together with my iPod :)
Also its very lightweight and small.

Cons: No power off button (Dont really know if its taking power all the time or not)
Nothing more bad about it.

Other Thoughts: 500chars...500chars...500chars...

Bottomline: Cheap, Better music for your mp3 player of choice and got a nice apple style design.

Specifications Return to top    
Dimensions: 2.17 in x 0.91 in x 0.57 in
Weight: 1.52 oz
Usage Instructions Return to top    



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