AudioQuest DragonFly Red vs Cambridge Audio Melomania 1

What happens when you use a good set of cans? I tried the Dragonfly with my new Beyerdynamic T1 2nd gen headphones. The first thing you will notice is that the Dragonfly cannot adequately power 600 ohm cans. Nope. Not at all

On tracks with intense sub-bass content, like The Knife's "Silent Shout," the earphones deliver a solid low-frequency response. At top, unwise listening levels, they don't distort, and at more moderate levels, the bass still feels robust. However, the lows don't sound as boosted here as they are on many bass-forward in-ears—the focus is more on accuracy and balance.

I recently replaced the aforementioned $2000 rig with a $200 one and you know what? I'm much happier with it. I'm listening to music again rather than scrutinizing sound. Moral of the story? The best audio gear is whatever gets out of the way and lets you enjoy the music. The worst audio gear is the stuff that becomes an obsession in its own right and leaves you listening for flaws in your gear and missing the music entirely

They also come with a lot more silicone and foam ear tips to help you get the best fit, and their charging case now uses a USB-C port instead of a micro-USB. On the downside, their battery performance falls short of their advertised claims, and their mic has a sub-par recording quality. 

They power everything to a comfortable level, except for the HD800 which they still power to an acceptable level. Don't expect to hear "completely new music" with these. Unless your onboard dac is completely terrible, you may not even hear a difference in certain songs. Still have some testing to do so will update review in the future

Plus, you're right: An over-ear headphone could get mighty sweaty during the summer depending on your location. I recommend an in-ear earbud with properly fitting silicone or foam tips. That will give you better portability, less heat and the correct balance between ear seal and safety. Suggestions for less than $100 for your preferred genres: Helm Audio Truly Wireless 5