Audio on the note 4 topic

Morning all, I've always had an android phone, more recently I've joined a well known financial firm and obtained a brand new iPhone 6 for literally nothing, which is essentially the anti Christ in my eyes, to my dismay I realised that not only was this phone everything I thought it wasn't it's also got superb battery life and is ridiculously louder than my note 4 with far better bass, my question is this, can lollipop sound be boosted, I'm currently on echo pop Rom, the audio with ael kernel doesn't work as it should by all accounts. But having owned an S3, I know Samsung phones are toned down when it comes to the audio.
My iPhone is pure stock, it's audio is amazing, both on headphones, Bluetooth and speaker volume.

All help appreciated.