Hello all,
After reading all this thread,reading other reviews and watching info on youtube, decided to buy this FiiO A3 amp.
Also considering M3k as DAP and they are almost same size so should stack nice, also hoping they will play well together.
Pro box and nice build quality.
Counter fit control system, nice!
If set to low gain NO increase in volume at all, tested on several inputs, iphone 5s, Oregon scientific Mp120, computer.
Is this normal?
On high gain using iphone 5s I can listen comfortably with BOTH on highest volume, again is this as it should be?
Using Koss ksc 75s, 60 ohm, and other super cheap and old headphones only for testing.
But biggest issue is NO USB CHARGING!
I listened, tested yesterday for a couple hours, did note that with computer source, could get close to what I would call loud enough but still thought this would put out MUCH more power.
This morning blue LED started blinking, understanding this is the alert to charge plugged in provided USB to micro USB into 5v, 1A charger, known to work as tested with iphone, Nothing.
Tried with unit on and off, nothing.
Tested with 2 other chargers also known to function, nothing, as well as computer USB, no charge.
By hazard noticed that my wifes Samsung phone charger uses micro USB, it is 4.7 v, .55a and now the blue led is "pulsing slowly" saying charging.
I carefully physically controlled FiiO charge cable, connection contacts, and MANY combinations to no avail.
I am certainly no electronics engineer but have built many RC elctric helis and am trying to trouble shoot this problem.
Now that wife is back used her phone to test FiiO USB to micro USB cable, problem found,
BAD cable!
So for someone who would not have done all these tests to trouble shoot the problem, one would not have known it was cable problem or unit.
By doing tests also found that volume level is about the same from iphone 5s at highest volume while FiiO A3 is at 7, high gain, and as said NO change low gain.
Also easy for me to choose iphone direct for sound quality when compared to A3 at same volume.
Hear very little change when bass boost is on, but when is on bassy tracks sounds muddy and grainy.
So my first venture into "higher fidelity" being my Koss ksc 75s, well pleased!
Added plus was fun project to mod with excellent results!
Second upgrade, FiiO A3 amp, would be returned to shop if I had the option to buy local, even today less that 24 hours of ownership.
As it was done thru Amazon and not sure if just a bad charge cable qualifies for refund or credit but will check into.
I always read and study a lot before making buys, not only for the fun but for savings as well.
Was considering FiiO M3K as first "real" DAP, but this DOA charge cable issue coupled with far below my expectations performance wise, will change my thinking.
revhed