Okay, but I don't have an amp. Would I be able to comfortably and easily run music without an amp with the Sennheiser HD 598s?

Röyksopp - Running To The Sea (feat. Susanne Lundfør) (Seven Lions Remix) Crywolf - The Moon Is Falling Down ReOrder & Standerwick pres. SkyPatrol - Skyres Atmozfears & Energyzed - Rapture KOAN Sound - 7th Dimension (great test for bass, some relatively complex bass lines in there) Xilent -...

I was looking at some headphone response curves and I changed to the "Impedence to Decibel" curve. Here's what I found:       Now, since the HD 598 has a huge hill at 100 Hz, will that cause listening problems? Or is this impedance peak completely unnoticeable/this graph is incorrect?

Ok, thanks for the feedback. I'll take you up on that.

If you're going to be getting HD 598s, an amp is completely unnecessary. If you want to "prepare" for getting higher end headphones later, you might want to go with an amp and DAC like a Fiio E10, but within your price range a Fiio E12 would be the best option to my knowledge. The options that...

I'd recommend Audio Technica ATH-AD900Xs. Open back will give you a much better sound stage then M50Xs. They don't have the greatest bass in the world, but it should suffice for your music tastes.

My HD 558s recently broke, so I've been thinking about getting the following:   Audio Technica ATH-AD900X Sennheiser HD 558 Beyerdynamic DT 990 Pro (32Ω version, if possible) AKG K612   Now, I'm not too sure about getting the K612s or the DT 990 Pros (if I can't find a 32Ω version)...

Temple One is my favourite trance producer, hands down. Definitely check him out.  

Would recommend the AKG K612 if you want to sacrifice money for an amp or you can go for Sennheiser HD 598s. Those are the ones I've had the best experience with.   Granted, I did just join the forum.