Quick question (i just got these today), how durable are these? I was planning on making them my on the go headphones and using them at the gym. Would the sweat/moisture cause damage?
The 558's would be the last thing I would bring to a gym.
They are fantastic for at-home but for at the gym they just aren't designed for situations like that.
The cord is incredibly long and comes with a 1/4" connection meant for home systems but when connected to the adapter, it's the bulkiest thing you would ever be able to connect to your phone.
They have velour padding which is one of the most comfortable I've tried but picks up every single piece of dust, hair, dandruff, etc. that it touches, it would definitely absorb sweat like a sponge.
They are open-back headphones which means they have a great sound-stage but let 95% of all exterior noise in which may not be the greatest in a gym.
They are very large, this isn't a bad thing for at-home, but in public or at the gym, these things are just a few notches shy of monster headphones like the HD 800 or Audeze LCD collection when it comes to size (and if you've seen a pair of HD 800 or LCD collection, you know what large headphones actually are) and don't get me wrong, the HD 800 are significantly larger, but the HD 558 is still huge when compared to other cans.
Lastly, while they seem to be incredibly durable cans, I cannot say if they are unusually vulnerable to conditions introduced in a work-out environment.
Some headphones are just made for different situations than others, and the 558 was not meant for going to the gym in.
I mean you could take them to the gym, nothing wrong with that. There are people that do weird things with weird headphones, but for the gym, you can find can much more fit cans for the job.
Since this thread was originally designated to closed-back headphones that compare to the 558, I will make no further comments on how the 558 performs in a gym unless in a separate thread.