As much as I enjoy listening to music with my RHA ma750, I've been thinking about getting some headphones. I'm told that headphones can sound better and be more "immersive." Just a quick note, I wouldn't call myself an audiophile. I just like listening to music and I do enjoy being able to hear "everything" a song has to offer and its little details. I'm perfectly fine with the ma750 sound signature. Though, sometimes I do feel as if the highs can be a bit too sharp and overpowering. Maybe that means my earbuds' seals are getting loose... idk. I do have a dac amp, the nuForce uDac-3. I mainly got it cause I don't like the motherboard audio solutions and it was on sale at MassDrop. Some headphones I've looked at. Sennheiser 6XX, Sennheiser 58X, AKG K7XX, Grado SR225e, and Hifiman HE400i. I'm open to options and feedback. One more thing, I know I've listed all open back headphones, but do you think a pair of open back headphones is better than closed back? I know noise is a factor when it comes to open back. How much noise leaks out and how much noise leaks in? Thank you for your help and suggestions.