I need help to get more volume from my phone and headphones

[AliShibaz]

 I have a Samsung Galaxy S4 and I listen to music using a pair of Sony MDR-ZX330BT headphones.

My problem is that I can't get the volume to go as loud as I'd like. At full volume, it is very loud. But I'd still like it to go a little louder and I'd like to ask a few questions.

Is the volume of the music primarily due to the headphones or the smart phone?

For those of you who may not know, the Sony MDR-ZX330BT headphones are Bluetooth (wireless) and I bought them for approx $100. Here are the specs:

http://www.sony.com/electronics/headband-headphones/mdr-zx330bt/specifications

Sony sells more expensive Bluetooth headphones. Their MDR10RBT sell for about $250. Would those headphones likely give me louder volume?

http://www.staples.ca/en/Sony-MDR10...-with-Microphone/product_1015818_2-CA_1_20001

There are also other headphones for sale for $500 like these:

http://www.bestbuy.ca/en-ca/product...spx?path=ed86ca7a38b48d6a510774cf41b229cben02

When I look in Specifications for headphones, I can't see anything that would indicate just how high the volume would be. With speakers, they list the "watts" and that seems to indicate just how much volume the speakers will produce.

But how can I guage how loud a pair of headphones will be?

Or do I need to be looking at a different smart phone instead?

Poweramp has several settings that control the maximum volume. I have explored them all.

There is one setting called "Preamp Replay Gain" and that makes a huge difference to the maximum volume. But I have set it at maximum and when I increase the volume past a certain level, the sound begins to crackles.

I should also say that I have tried the setting called "Limit" and it controls the limit of the volume to prevent crackling. I have tried it both on and off and it works fine. But I still can't get the volume to go as loud as I'd like.

Can anyone give me any info? Do I need to buy new headphones? Or maybe a new smart phone? I'm willing to do whatever it takes to get more volume.

 

 

[AliShibaz]

I have found some info elsewhere.

 

But thanks anyway.