see if you can demo a Yamaha Pro 400 or Amperior.

The Memphis has that modern production sound, it's gonna be tough to make that sound good. I've written extensively on a lot of closed headphones if you search for my old posts. I would also recommend you search for an article called Sansa clip measured and get one of those. Cost is about...

I think you'll need something with a similar size to get something like that. Try the K550 or Yamaha 400 or 500 if you can demo them.

Try an Amperior, Yamaha Pro 400, and AKG 550. Before you consider buying all sorts of expensive stuff that largely doesn't have verified performance, I would recommend trying stuff that's not too much money that has verified measurements. Like a Sansa clip for portable and an Odac for the computer. 

It's tough to say how things are gonna work without knowing the measurements of the source. The output impedance could be anything. Metal is tough to get right a lot of the time because of poor decisions made in the recording studio. Are you using 1st press, non-remastered cds? A lot of these...

I've got an HD25. I think it's good but not as interesting as the Amperior. Ultimately I've listened to and bought a lot of the best closed headphones and vastly prefer the Yamaha pro 400 over all of em. If you search it, I've written a lot of detailed opinions on the different phones I've...

I haven't found a full-size headphone that you can't hear the music through if you're listening at good levels. K550, Amperior, Yamaha Pro, Momentum, UE6000, it's all audible to a degree if you're in a quiet environment. Maybe IEMs isolate a lot better. Out of all the closed headphones I've...

I wouldn't bother with the UE6000. Demo the yamaha pro 400 if you can. you'll find a lot of info if you search my older posts.

have him try the yamaha pro 400. looks like beats but is far better than other closed headphones I own or have heard. Momentum can sound kinda drab. UE6000 doesn't have a lot of energy. I've written extensively on these in other threads.

not sure what your source and amp are. most of these headphones are about your own preferences. I've heard a lot of the most expensive models and not found them much to my liking. try some of the closed stuff. yamaha 400, akg 550, amperior, dt 770, hd 280, great stuff that's not too expensive. I...

see if you can demo a yamaha pro 400 and Amperior

while I'd recommend the yamaha pro 400, I don't know I could wear it that many hours. The senn hd280 seems like it would work for hours on end without a problem and the sound was quite good.

I still like my Yamaha pro 400 the best 

read some of my extensive posts on the Yamaha pro 400 in various threads, particularly those where someone asked about metal.

just got the fuze+ with rockbox and I swear it sounds less full and more analytical/clean compared to the zip rockboxed. Going back and forth between the two using the same songs, it's definitely noticeable. The fuze touchpad works decent but isn't 100% responsive.