Let me say first that I am not going to make this a full review. As with all things in life, this is only an impression from one mans point of view, with everyone else ears being different.
Right off the bat I would have to say that these are very nice and comfortable. I have tried them with different UE tips, Sennheiser CX-300 tips. There was no use trying the Panasonic RP-HJE50 tips because they appear practically identical. I did not use foam tips as I don’t like compressing them every time I want to put earphones in my ears. Give or take minus the foam tips which should isolate better, the rest were about the same. UE foamies, or the foamies made for the E2c should work well with these. However you could always experiment and make your own. The UE dual flange is not bad, but I prefer the tips these come with.
I listened to all types of music, Rock/Metal, Jazz/Blues, R&B, Classical, Pop.
Right now I can say that these are much more refined than CX-300b, JBL 220, and any of the lower cost dynamic speaker in ears including my Panasonics. Now I love the Pana’s because they have a signature similar to my AKG K701’s but not as refined, minus some detail, and a little soundstage for $29. Yes $29.
Bass: Great out of the box. However after 24 hours of break-in with pink noise, it became much more refined/accurate, very clean/precise, and has great impact. Bass impact hits hard/er or less depending on the genre of music you are listening to.
Mids: Nice clean and vocals are to die for.
Highs: Excellent is all I have to say without a hint of roll-off.
I would say so far, that this is the best non armature in ear phone I have heard, though I have not heard the FS Atrio M5. But from reviewers, some mention the not so present highs and mids, or that they are not as prominent, though there is more than enough of each. I would to say (and head-fiers don’t kill me) that I would rank or put these on the same level of the SF5pro and the Shure E500. Some may even argue that they are better than both if they get a chance to audition them. There is just something about a dynamic driver that sounds right, more natural sound than an armature. Maybe it is the impact of the instruments.
Wait let me explain! (sniff sniff from a beating by head-fiers)
I have owed the E500 3 times, and I have to continue to say that the SF5pro has a wider soundstage than the E500. This is a fact **to my ears**. The sound signatures are very close, but I preferred the SF5pro. Too close to call, but with soundstage being greater on the SF5pro, and the details about the same, well you get the picture. Needless to say, I still don't own the E500 to this date even after owning them 3 times. (3 strikes you’re out).
How do they compare to my TF10pro you ask? They don’t. The TF has the widest soundstage, and the best detail of any IEM I have heard, like a full sized headphone. Unfortunately I have not heard the Westone 3.
If I was to summarize, it would go a little like this. Were these to be out prior to me owning the SF5pro, then I would own these instead of the SF5pro as there would be no need for me to get them. Since I do own them, I find them a little hard to justify since I own the SF5pro and the TF10pro. At $199 from Fry’s they are hard for me to justify if I decide to audition the Westone 3. These Denon's can be found for $169 online from AudioCubes. These may be what I need as they sound great, and would be easier to insert than the Westone 3. Plus I save $200. In order for me to keep these, I would get rid of my SF5pro, real CX-300, and Panasonics. I am so confused of what to do since these are very nice.
Great job Denon! I think you hit it right the first time out.
It is claimed, and this
quote from “TrustedReviews”; (In typical Denon style, the hype behind the earphones is finely tuned stating that "The same engineers who design Denon's £5,000 CD players have worked on the AH-C700, refining them over and over again until they were happy with the sound and the fit".)
end quote.
With that out of the way, here are the pros and cons.
Pros:
Great out of the box, and better after break-in
Bass is nice extended with great impact, and the decay just sounds right
Mids: Just right throughout the entire spectrum and vocals sing
Highs: Perfect! Every cymbal/high-hat has the right amount of decay.
Cons:
It does not come with a carrying pouch. Even the JBL has one for all accessories, the best I have seen included with an IEM/Canal phone.
Did I mention there is no carrying pouch?
In the end as in the beginning of this mini review, “As with all things in life, this is only an impression from one mans point of view, with everyone else ears being different.”
I can’t believe I wrote this much. (Shaking head vigorously)
Denon AH-C700
the bass is amazing! I played tracks that make some of my cans sound like a distorted mess. And these little wonders handled them with aplomb. 
