[Lenovo ZUK Z2 (Plus) Themes, Apps, and Mods] ScreaMySkrillEX:
Link to the google drive folder which contains flashable zip of all releases:

https://drive.google.com/folderview?id=0B5ratNhH-7mGa1I4VW5wMXlmYjg

Recommended tips:

1)This mod works(should work) on all ROMs and kernels. If there is any compatibility issues or other requests, please post a reply. I will definitely respond to it.

2)Flash Ainur Sauron audio mod made by [MENTION=6366997]UltraM8[/MENTION] along with this mod for a much better experience.This is currently the best audio mod which is the cleanest..Please thank him for his great work...

Link here: https://xdaforums.com/android/software/soundmod-ainur-audio-t3450516

3)Users who need more tweaking to the audio can use Viper4Android.

Link here:http://vipersaudio.com/blog/?page_id=25

4)I have included some of the best IRS samples for viper4android(according to me). So try it out if you are using viper4android for complete control over your music. Extract the zip and place the contents in viper4android/kernel directory of your internal storage.(the zip provided is not recovery flashable).

5)People who use MX player for videos can enable SW audio boost which will further increase the sound levels through speakers without any distortions..

It is recommended not to listen through speakers at full volume for longer periods.. Keep the volume low by 1 or 2 steps from the max.

6)People who think that the present max volume through headphones isn't enough can install viper4android and increase output gain to 6dB in master gate..

My personal Viper4Android settings:

Master power - on

Playback gain control - off

FET compressor - off

Viper DDC - on, set to sennheiser hd558

Spectrum extension - on, set to 1.0

Firequalizer - off

Convolver - off

Differential surround, field surround, headphone surround+, reverberation - all set to off

Dynamic system - off

Viper bass - off

Viper clarity - off

Tube sound simulator - off

AnalogX - on, set to extreme

My earphones :

1) Sennheiser cx180 street-II - daily outdoor use.

2) Skullcandy Ink'D - used rarely.

3) Sony MDR-ED12LP - used when I'm at home.

Changelogs:

V1 - *initial release.

*increased amp gain for more headphone volume and decreased DAC gains to remove distortions.

*added dual speaker config like htc10.

V1.1 - *added support to flyme OS(thanks to [MENTION=8383828]sonictrain[/MENTION] for reporting)

V1.2 - *enabled compander for headphone audio to increase the amp gain to the max.

*readjusted earpiece and loudspeaker audio for both htc10 and stereo version.

*added a new version called stereo version

*htc10 version is the default dual speaker config which I had made in the initial release of the mod.

*stereo version enables stereo playback through speaker audio. Earpiece behaves as left speaker and loudspeaker behaves as the right speaker. Its a true stereo effect. You can check it out with stereo test music or app.

V1.3 - *added support for stock ZUI ROM (thanks to [MENTION=5040102]ahh988[/MENTION])

*added a new version called stock version which only makes changes to audio through headphone jack without touching anything else. So now you have three versions:

1)stock version

2)htc10 version

3)stereo version

*made some changes to volumes of all streams from 87(ZUK stock) to 84(hardware stock value). I don't know why did ZUK people kept it at 87. This will remove distortions in headphone e audio.

*added an impedance selection for people who use headphones with high or low impedance. The installer configures the amp settings appropriately to give you the best audio experience possible.

*Increased amp volume from stock value 12 to 16 for low impedance and 20 for high impedance to boost headphone jack output volume without causing any distortions.

*added ota survival script for the mod.

*finally, integrated the mod into an aroma installer.(thanks to [MENTION=4460588]MOVZX[/MENTION])

*Retuned stereo version to balance the audio and give a perfect sound (thanks to [MENTION=5040102]ahh988[/MENTION])

*added 24-bit audio rendering through headphone jack output to increase sound quality.