Huh thats odd. In the US, the idol 3 is almost 100 dollars cheaper than the x+, caming in around 120-130 usd. The other is over 200 from what I can find. But we should probably leave those phones to a different discussion lol.

The v10 also powers my hd 558's with ease, with a comfortable volume being about half and they hurt at high volumes. These are also only 50 ohms, but the soumd is still pretty impresive for a phone.

As good or possibly better than the v10? That would be quite the feat condidering that the dac/amp is the main reason I purchased the v10. And that phone is quite a good budget option too. I will have to try it at the soonest opportunity.

I use vsonic vsd3 iems for portable listening, and the v10 powers them awesomely. Music is loud amd clean from both spotify 320kbps and my own personal lossless flac files. The headphones are only 40 ohms, but the phone should be able to drive any headphones with similar impedances just fine!