(First of all sorry if this is in the wrong thread please move if required.)
I've recently purchased some Beyerdynamic DT1350's as the title suggest and am wondering whether or not to buy an portable amplifier for them. Reasons for this include I am always within the high volume range (>60%) on my iPhone. Secondly, they have a driver rating of 80ohms, higher than my previous / many portable headphones and what my iPhone can deliver of 32ohms.
Unfortunately my iPhone is the latest one (so only has the lightning out) hence I would be limited to dual amping. Additionally due to size restrictions all of my files have been down sampled to 320kbps by iTunes.
Hence my options are:
A) Leave it alone it works fine, enjoy my music and save money.
B) Buy a portable amp such as a Fiio E7 / E11 and dual amp my beyers from my iPhone.
C) Buy a portable music player like the sansa Clip+ and a memory card (For full-fat files) and then later buy a portable amp that I can use a digital LOD.
Any advice Head-fi'ers?