Cross post from the MM-500 thread where I went into more detail.
I got the chance to audition the MM-500 versus my LCD-3 at my local headphone shop for an hour and a half, using the single-ended out of a Hifiman EF400.
The first thing I noticed was that the MM-500 is very fast with an intimate but open sound. Everything sounds like it is happening in or right against your head with images being very large. Though the separation is good, it is offset tremendously by the fact that the images are packed so closely together; nothing really has the space to breathe. The second thing I noticed was that it can be a bit shouty with vocals. Some of this has to do with the mixing/mastering of the music while the rest of it has to do with a peak somewhere in the lower treble and upper mids. For context, I find the ZMF Eikon to have a very similar peak and fatiguing nature, but I don't find the HD800S or Focal Clear to be fatiguing; chock that up to ear shape and hearing loss I guess. I am not a mixing/mastering engineer, just a music enjoyer with an over-eager headphone budget, but I do think that this would be a very strong choice for a studio environment given its strengths.
In direct comparison, my LCD-3 sounded overly smooth, dark and warm (basically like an LCD-3 should sound) it's not that the LCD-3 lacks details, rather it is a much more "lay back and relax" sound signature that also includes details. Between the two, the LCD-3 has a worse timbre but a much richer midrange; it's kind of a hard truth on one hand and a seductive lie on the other. The bass on the LCD-3 is more prominent and forward but the MM-500 feels tighter and quicker down low. I think that if you already love the LCD-3 and old house sound of Audeze (like I do) you should not sell your old Audezes to fund an MM-500 or LCD-5. This new direction is focused on resolution as opposed to musicality. That's not to say that the MM-500 is not musical, it just isn't willing to lie and butter up your music for increased enjoyment.
The LCD-3 also staged further away than the MM-500 but seemed to have slightly smaller image size. Coupled with the dense black background of LCD-3, it made everything stand out more in the soundstage when compared to the MM-500. I think some of this has to do with the larger double-sided magnets of the LCD-3 versus the smaller single-sided magnets of the MM-500. I suspect that this difference coupled with the more aggressively angled earpads made up the majority of the differences between the two in presentation.
Hifiman EF400 is junk driving LCD-3 (or any other Audeze cans). LCD-3 does not sound overly warm, dark or smooth.
To clarify, I am not saying that you didn't accurately describe what you heard, I am just venting about headphone dealers like to demo high end cans using low-fi/mid-fi components. Why is it so hard to get a mid range dCS, MSB, Playback Designs, Emm Labs, Bricasti, BAD or the like source and pair it with a good $3k amp. LCD-3 for example sounds totally different on mid-fi system vs top shelf system.
I actually don't fully disagree with your assessment of the EF400 and its pairing with the LCD-3, it definitely wasn't sounding as good as it does in my system.
However I did say "in direct comparison" before "overly smooth, dark, and warm." The reason I said it that way is because the MM-500 is supposed to be neutral to bright and it is successful at that; the LCD-3 is not supposed to be neutral or bright and when compared this difference is stark, hence overly smooth, dark, and warm.
From my understanding, the MM-500 is supposed to be a revealing studio tool, and against the LCD-3 I thought it was successful at that.
Thank you for that well thought out comparison
@kid vic. It very much mirrors my own experience with the ‘21 rev LCD-X (which has a similar ‘pro’ voicing to the MM-500, though probably slightly less overall technical sophistication). The only thing I’d add is don’t underestimate the contribution of the wood body to the overall sonic picture. As a long time audiophile (50 years in the hobby), hack guitar player, and gear head in general, I am very aware of the subtle and not-so-subtle differences between materials used in speaker cabinets and the different tone woods used musical instruments. As an exaggerated example, take a top of the line Ovation, with its composite carbon body; it will never sound like a good Martin, with a Brazilian rosewood body. They are both fabulous guitars, but they generally appeal to a completely different set of players. Neither is necessarily better or worse, just very different, and each has its own cadre of devotees. To each his own. The body of a headphone contributes to the overall sound in a similar, if less overt way.
I also agree with
@chesebert that the ef400 (although I’m not familiar with it specifically), probably struggled with the LCD-3’s somewhat more difficult load, giving the MM-500 a slight advantage in your comparison. A better amp would have allowed the LCD-3 to open up and strut its stuff more - it would ‘scale’ better than the MM-500 with its easier load, but that’s by design - the MM-500, as a studio tool, has to give its all on even a modest amp, because you never know what it’s going to be plugged into in any given studio situation. That’s not a cut against the MM-500. Quite the contrary, it’s a testament to its having been designed well and for a specific purpose. It’s also, however, one of the things that ultimately turned me off about it’s sibling, the LCD-X, but, again, that’s just my personal taste, not a matter of right vs wrong. I would think (hope) that most people who go for an LCD-3 would be putting it into a very high end system with an appropriate amp that would eliminate many of the things you didn’t like so much. I’ve said it a million times all around this site - a headphone doesn’t make sound by itself, you have to judge it in the context of a system. Some amps will work better with some headphones than others, and vice versa - it’s a matter of finding the right combination. There are too many guys around here who think that all they need to do is buy a better pair of cans and everything will be wonderful, when just the opposite is true - the better cans will more likely reveal the shortcomings of your upstream components and, in the case of an amp mismatch in particular, might even sound worse.
Anyway, I’m rambling. Suffice it to say that there are a lot worse things an audiophile could do with ~$2k than buy either of these wonderful offerings from Audeze, and I can say from long personal experience that the CS at
@Audeze is first rate - the kind of company you
want to do business with.
So, what’s your favorite flavor, Coffee Heathbar Crunch or New York Super Fudge Chunk? Or maybe you’re a Carvel soft vanilla aficionado? Personally, I like ‘em all, each on its own terms, and I don’t care if you serve them in a cup or a cone - but please don’t think they’ll taste the same if you serve them in a bowl of clam chowder.
Enjoy!
IMHO, YMMV, just my $.03, etc.,
ad nauseum.