[Xperia Z3 General] hospital349:
Here's the synopsis for Noozy, taken directly from Dogsbark's website:

An audiophile grade music transport, designed to enhance the listening experience for the on-the-go audiophile. The “noozy" features a premium audio player that lets you experience the best possible sound quality from your music library.

Introducing the advanced sound engineering from “Noozxoide Laboratories“. The noozy exclusive special effect VSP “EIZO-rewire M Series” delivers software-layered 32bit floating-point processing power bringing the superior and aggressive sound that ever made. The new VSP processing and mixing each FX separately, you can fully take control of your content effects.

"ESX acoustic engine" for headphone deliver fake-Crossfeed effect, automatic basic toning and acoustic restoration, added premium deeper bass enhancer "MaxxBass II UltraLinear" giving more speaker sizes and psycho-acoustic bass effect up to 1.8 octave that can merely punch a hole on the floor. It’s an earth-shattering bass enhancer FX taken from “EIZO-rebirth TX” Cinema Edition and special tuned for music content.

"Crystalyzer" and "Soundfield Attack" give you more detailed and deliver ultra-higher resolution possible. Which makes crystal-clear and re-mastering the world full of symphony of sounds. The "NuVocal UltraLinear" re-shape the vocal/phases sound clearer, acting acoustic restoration.

The state-of-the-art AVLS system normalizing from song to song without even needed to pre-analyze the song volume-level, also act as a smart overload protection system.

In this "Classic" edition, DFX Switcher allows you to use either Internal or External audio filter network, so that you can experience two different kinds of VSPs. If you are tired listening to the aggressive sound for a very long hours, there are several VSP series available in the market which you can use them as an External DFX network for your new sound modeling again. So you get nothing less than exceptional sound performance, every time. Now doesn't that sound great?

PLEASE USE PROFESSIONAL HEADPHONE OR PRACTICAL SPEAKERS TO EXPERIENCE IT. RECOMMENDED TO USE HEADPHONE AMPLIFIER

AGGRESSIVE SOUND CAN DAMAGE TO YOUR EARS WHEN LISTENING TO A VERY LONG HOUR IN EXTREME SETTINGS. STOP USING IT IF YOU ARE FEELING UNCOMFORTABLE

READ THE GRAPHICAL USER MANUAL PROVIDED. THIS PRODUCT HAS LIMITED HARDWARE COMPATIBILITY

(Tech: this app uses emulation technologies to communicate with the compatibility libraries as a medium (alsa driver) and interprets directly to the DAC chip and doesn't require external libs, it simply took over it, brought to you by "Noozxoide SoundXEMU" sound-cross-emulation)

Supported Formats: MP3, OGG, (AAC, M4A), FLAC-16

DAC-2-EMU (M): S-Master HX/MX (100%), BurrBrown (100%), Sabre (100%), Wolfson (100%), QualComm (100%)

Supported Formats include: MP3, OGG, (AAC, M4A), FLAC-16

The difference is day and night, compared to Poweramp (coming from someone who used Poweramp for about 2 years), especially when used in conjunction with a decent pair of headphones/earphones (which I use) and FLAC files.

I also use a FiiO E6 Amplifier, which further enhances my listening experience.

I have never been happier as I am now, with the combination of my Z3 Noozy, Noozxoide Pro, and my amp. Crisp, full sounds. Wonderful, balanced bass tones and tons of freedom to adjust and tweak, without compromising natural studio quality sounds (the way music should sound, in other words). Plus, the interfaces are user friendly, with no silly pre-sets, nobs, or dials to fiddle with, like on other equalizers and music apps.

Don't get me wrong, Poweramp is still fantastic and has evolved greatly over the years, but Noozy definitely takes the cake.