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|Package Weight||0.4 lb|
|Box Dimensions (LxWxH)||5.1 x 5.1 x 1.0"|
|Volume Control||ALPS potenitometer|
|Frequency Response||20 to 20,000 Hz|
|Signal to Noise Ratio||> 108 dB|
|THD||0.004% at 1,0000 Hz|
|Charging Time||4 hours|
|Power Supply||Mini USB Port|
|Operating Time||Up to 16 hours|
|Power Input||5 VDC at 500 mA|
|Input Impedance||16 to 150 Ω|
|Output Power||270 mW (32 Ω)
450 mW (16 Ω)
|Output Current Limit||92.6 mA|
|Output Voltage||8.67 Vp-p|
|Dimensions||3.59 x 2.20 x 0.51 cm (91.2 x 56.0 x 13.0 mm)|
|Weight||3.2 oz (92 g)|
|Battery Capacity||1400 mAhH|
|Output||1/8" (3.5 mm) stereo headphone|
If you think the only purpose of headphone amplifier is to make a sound louder, you will be in for a big surprise to discover how much it can shape the sound and contribute to improvements in details, soundstage, etc.
I purchased a Fiio A3, there was a good reduction on the price because the box had already been opened, but everything was in very good order and looked as good as new.The amplifier itself is smooth to the touch and looks well made. I like the addi ...
I'm going to keep this short and sweet. I bought this to amplify the sound for my Cowon Plenue D and it did tremendously! Awesome job Fiio and AMP3 for the service! Only thing is that the battery life doesn't last that long for me since I have it on ...
Good quality cable that can not be used with the casing.
Purchased this to increase the volume output whilst using the AUX in my 2006 Range Rover Sport with Harman Kardon, which it does very well indeed as I'm now able to use the same volume level as the other sources such as CD, instead of having to turn the volume significantly higher.
Very nice little headphone amp...works a treat.
Used with an iphone 6 not really that much of an improvement in volume levels from the phone itself, bass boost is reasonable but not great, a bit disappointing really for the price.
I've had the Fiio A3 headphone amp over a year or so now and use it with my Bose QC25's and my Shure SE535 iems. I have to say it's been a year of listening pleasure whatever I've been listening too, this little amp is remarkable with what it can produce, the treble is clean, bass is beautiful and...
Opens the sound up adds a touch of clarity and bass boost is very subtle. Paired with good headphones it makes them sound even better Makes my old average Senhieser sound better
This is the first amp that I have bought and I love it! It does exactly what I would expect. The amp is very well made, portable and most importantly it improves the sound of what I am listening to subtly.