bjamn said:

  Well, I have another question that seems appropriate for this thread (is a noob permitted 2 questions in the same day?)...
 
One thing that interests me about the 1540s is that they have separate cables going to each ear cup. Something I've noticed about my current pair (X1s) is that "center" is not exactly in the middle, but slightly to the left. On the K545s I had, center instruments seemed even further off to left. The M-100s were good, my M50s are perfect. I realize "center" can vary depending on the recording, but there are those songs that you are familiar with and you know that kick drum should be right in the middle sweet spot in your brain. 
 
I'm wondering if having two cables feed the phones ensures a better L/R balance, as opposed to one cable that goes to one side? 
 
[Of course, the imbalance could just be my imagination. But it sure is distracting!]

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roguegeek said:

  If the W1000X used a traditional headband as opposed to the wings, I probably would not have been looking beyond it. Oh well.
 
Beyond that, I'm a HUGE fan of the SRH940, but know I want something a lot nicer for my home rig's closed option. It's the D5000, D7000, or Alpha Dog at this point. So does anyone have some comparisons they can make?

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roguegeek said:

  Generally, a dual-entry system is going to ensure there is no delay between the signal reaching your drivers as the signal needs to travel the same amount. Now, people really can't tell the difference because the signal is so damn quick, but that's the purpose of the dual-entry vs the single-entry. Balance, though, that's a different issue. If you're noticing the center of most of your recordings is off to the left slightly, it may be a hearing issue. Might be something to have a doctor look into.

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gelocks said:

   
Well, it probably doesn't sound too good for your tastes!
Bass presence on the 1540s really take precedence, the rest of the spectrum is pretty much even... That's even supported by the freq response it seems:
 
http://www.innerfidelity.com/images/ShureSRH840.pdf
http://www.innerfidelity.com/images/ShureSRH1540.pdf
 
1540s >>> 840s all the way anyway... separation == imaging (in my dictionary), and the 1540s trounce the 840s.
 
Check my review as well on my Signature for more of my musings.

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dakanao said:

  Do vocals sound distant on the 1540's? And which headphones has more air, the 840's or 1540's?

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change is good said:

   
Depends on what you are used to. If you prefer forward mids, then the 1540 will sound distant to you.
 
Soundstage is much larger on the 1540...

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kimvictor said:

  I do have some experience with SRH840, but don't have one in my hands.

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dakanao said:

  I don't understand why Shure decided to make the mids not forward sounding, like the 840's? Cus they seem like the PERFECT headphone for me, the only thing that's really turning me off is the linear midrange, that doesn't get me engaging in my music...
 
Well, I guess you can't have everything then...

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pietcux said:

 
If you compare the frequency graphs on innerfidelity then you see:
 
1540 has more bass, nearly the same mids and no treble peak around 9kHz
 
For me it is the better headphone with nearly the same mids.
 
Seems to be an example for great engineering.
 

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dakanao said:

  Yeah, you said it correctly. NEARLY the same mids. If the mids would be just very slightly less forward than the 840's, that would be a big issue for me, because I can't stand any form of distant sounding vocals, they always need to be in the highlight for my taste.

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