I have never owned any headphones that costed over $20 so I went out on a limb buying the sennheiser 558's for about $110 (refurbished)
1) Will I need a portable amp to get quality sound from this headphone? This pair of headphone comes with a 6.5mm to 3.5mm adapter so I can plug it into my iPhone.
1a) If I do need an amp for quality sound, will I need to buy additional cables to hook them up to my headphones and phone? I am planning on buying the Fiio 6 if I do need an amp to power them
2) I am planning to use these pair of headphones for gaming. The ps4 comes with a 3.5mm jack in the wireless controller and I was planning to use these pair of headphones with them. Will I also be able to use a portable amp to use while gaming and not just used for listening on the iPhone?
3) If I am able to use these headphones with the ps4 controller (3.5mm jack) will this in any way decrease the sound quality as if it had been using HDMI or bluetooth for sound?
Thanks for reading. You don't need to answer all of them or can answer as short as you like. All responses are greatly appreciated