But you do not need root and do not lose your warranty. ( In addition, I have me a H990Ds.
What I can not even root. )
Virtually fooled the amplifier. With the headphones less than 50 ohms, a much stronger, more dynamic are all about.
As if bound in headphone amplifier. 3 positions
1. normal audio headphones under 50 ohms
2.only extender= aux (+ 25% power)
3.Extender and adapter 75 ohms = high gain (50-600 ohms) (+50 % !! power ) In this position it will be as strong as FiioX7.
the maximum amplifier module)
Aux mode :
1. If you only extender on the phone. Aux position will be.
Then, when we put on the headphones (below 50 Ohms), the Extender. It remains aux position to get more reinforcements. Approx. + 25%.
2 . if you have a headset which is remote.
even if the play / up or down/ play buttons to keep. about 2-3 sec.(Even before the insertion press and hold)
It provides about 25% + gain. (( Thanks for the idea: Ninjafrog84 ))
High Gain mode (two adapter required)
Connected together( extender+75 ohm adaptor)than to be inserted into the phone . (The phone will be HighGain position), then pull out the impedance adaptors increased. The extender will remain. (The phone still remains high position), this is the trick. !! and then you can plug in headphones to less than 50 ohms on the Extender.
And we enjoy .. High Gain, but be careful in your ears.
((( Over 50 ohms headphones will be automatically high position, there should not be any magic. ))
two adapters to be added.
Here is a page with photos HeadFi I illustrated how to do it : ( post #2071 )
Nota Bene : (( The High Gain the advantage of a stronger voice for: LG, according to all four DAC is activated.
If High Res plays music from the DAC. ,,Or,,
Also, if a high-impedance device is connected to the phone.
Nevertheless, not every player can send the output of high-quality music ..
But the noise 4 DAC lower , however, a great advantage.
In case of lower-quality music, and either normal (below 50ohm) headphones. Only one DAC operates.
(Hence the noise cancellation is less)
Because of the efficiency of batteries.))
That is why I, and hear it as well.
Not only is this strong in High Gain.
It's cleaner and nicer. (Be it a placebo?) But to hear the difference.