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DUNU DN-2000J -- More Than Evolution?

May 29, 2015 at 7:28 AM Post #436 of 2,123
tomscy2000 said:
   
What are you looking for? The 2000J will be less U-shaped than the Roxanne (at lowest bass setting), for example. It's not going to have as smooth a treble response as the ER4S (almost nothing will have that). But it does have TOTL-level performance, bar none. IMHO, the DN-2000J is best suited for low-volume listening, which is what I personally like doing. It maintains a lot of detail from top to bottom, even when I'm listening at 1% volume off my Concero HP.
 
With the huge range of tuning options, the FLC8 is certainly a nice option, though I suspect that it won't be that comfortable. Also, from Tyll's measurements, the impulse response isn't perfect, so I don't know how the bass response will be.
 
I have small ears too. The DN-2000J fits fine. I had trouble with long-term fit the first week I had it, but I realized it was chafing from the stabilizer fins, so I took them off, and they're now comfortable for hours on end. I only have a gripe with how to remove them. I tend to pull with the strain reliefs, and that's not a good thing, even if it does hold up long-term. Ergonomics and attention to detail for the K3003 are still superior, obviously.
 
 
The DN-2000J, functionally, is a completely different product from the DN-2000. Different dynamic driver with different impedance characteristics, and completely different crossover design.
 
They did want to rename it, but because they had the name 'DN-2000J' certified for Hi-Res Audio by the Japan Audio Society, they didn't want to spend the extra money and get it re-certified for a different name, only to not use the 2000J name at all.
 
I suspect the next model will be similar to the 2000J (similar technical enhancements), but with removable cables. That's what DUNU seem to be concentrating on these days for R&D. I'm assuming they'll call it the DN-3000. Who knows.
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The FLC8 was surprisingly comfortable for me, though they do look a little odd, cute even. The DN2000J on the other hand is truly a thing of beauty. The main issue for me was that the filters facing the inside of my ears have a tendency to stick on to the skin and pop out of the iem. That one is really easily lost so take care to secure it. I've heard from LMUE that the newer batch will have more secure locks. The demo probably was really well used.
 
May 29, 2015 at 7:37 AM Post #437 of 2,123
redtwilight said:
  The FLC8 was surprisingly comfortable for me, though they do look a little odd, cute even. The DN2000J on the other hand is truly a thing of beauty.
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I meant it in the context of @robm321 and small-eared people. It's just a guess, though. Perhaps it is actually quite comfortable. However, many universals don't fit me correctly because my conchae are small and the insertion angle of my left ear is odd, and when I saw the FLC8 months ago, I recoiled at the thought of using them. I'd love to be wrong.
 
The K3003, to me, is more comfortable than is the DN-2000, simply because its edges are rounded off, and the coiled-over strain reliefs are easier to get to for removal. I can see why people would like the DN-2000J's design, too; it's got a nice, contemporary design. It doesn't quite have the polish of a truly high-end product, however, but I don't blame DUNU. Their concentration is on making good products affordable, and that does mean industrial design, graphic design, and packaging all take a hit on absolute quality. They've been steadily improving on this end, however, so that's a good thing. The DN-2000J is already a great improvement over the DN-2000 in design, even though the housings are largely the same. It's the little things that count.
 
May 29, 2015 at 7:37 AM Post #438 of 2,123
I currently have a pair of Fidue A83s that I only drive with my phone (LG Optimus G Pro) which I think sounds great with the right tips, I don't have any reference to what a good DAC will sound like as I haven't spent the money since I've been satisfied with the sound.  I do have complaints about the A83s as I still struggle to get a good seal even after trying about 20 different tips but my biggest complaint is the isolation.  I mainly use them at the office and I can hear myself typing with the A83s if I'm listening to something quieter (podcasts or classical) and find it very distracting.  Do you think the DN-2000J would be seen as an upgrade in my situation?  I've been debating between these or just spending the extra money and getting some 1964Ears V3s to call it good (hypothetically).
 
May 29, 2015 at 7:39 AM Post #439 of 2,123
h20fidelity said:
 
aero dynamik said:
  That's exactly what I was waiting and hoping for. I'll most definitely be getting a pair after these impressions! Thank you very much H20Fidelity (I believe I've mentioned it before but I seem to hear things the way you do) When you write that "the resolution sounds higher and its slightly brighter" I take it you mean that the J is more resolving, no? Of the TOTL phones I've had, or that I consider TOTL phones anyway (TG334, K3003, ER-4PT, FX850, DN2000, and actually the Carbo Tenore for its outstanding tonality) I've felt that the DN-2000 has been the most resolving. By resolving I don't mean detailed - the most detailed (too detailed!?) phone I've heard is the FX850 - but rather its ability to project the sometimes very subtle facets that you'll hear, let's say, in the decay of a tabla. With detailed I simply mean that you'll be able to hear every detail but not necessarily with great quality. Hm... it somewhat hard to explain but hopefully it'll make sense to you. Anyway, if the 2000J is indeed more resolving than the 2000, even if just by a tiny bit, then that is truly phenomenal.
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I know what you mean by detailed and resolution. 
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I do feel DN2000J is more detailed than the original. But by resolution I do mean hearing that certain curve or extra little nuance in a female vocalist, for example, as she's rolling onto the next lyric etc.. Little things that otherwise are usually left hidden or un-resolved with other IEM's. I wouldn't say you're going to hear things like never before but DN2000J certainly picks up some extra missing pieces. 
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O.M.G., I just have to have this phone!
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 Thanks! 
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May 29, 2015 at 7:53 AM Post #440 of 2,123
lavs23 said:
  I currently have a pair of Fidue A83s that I only drive with my phone (LG Optimus G Pro) which I think sounds great with the right tips, I don't have any reference to what a good DAC will sound like as I haven't spent the money since I've been satisfied with the sound.  I do have complaints about the A83s as I still struggle to get a good seal even after trying about 20 different tips but my biggest complaint is the isolation.  I mainly use them at the office and I can hear myself typing with the A83s if I'm listening to something quieter (podcasts or classical) and find it very distracting.  Do you think the DN-2000J would be seen as an upgrade in my situation?  I've been debating between these or just spending the extra money and getting some 1964Ears V3s to call it good (hypothetically).
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I had two main issues with the A83 --- the first was fit; the fit was horrendous for me. I couldn't get it to seal properly most of the time, and when I did, the earphones felt ridiculous sticking out of my ears that way. My second issue was the notch tuning in the upper mids. It made the midrange sound overly warm and didn't do any favors for the bass, which lacked control except with the AK240.
 
With that said, I can't guarantee you'll have a significantly better experience in the isolation department with the DN-2000J. As a relatively shallow insertion IEM, the DN-2000J isn't going to do a stellar job of isolation simply because of physics. It will not isolate as well as a deep insertion product. However, it does have typical isolation characteristics, and will *probably* isolate better than the A83.
 
If you're most concerned about isolation, you best bet is to go custom, or with an Etymotic if you don't mind the fit. Other alternatives include IEMs with Ety-like fit, e.g. Aurisonics Rockets, Carbo Tenore, FAD Heaven VII/VIII/Lab I/etc. and the InEar StageDiver SD-1/2/3/4 series. Except for hybrid or dynamic ones with large vents, CIEMs are all relatively similar in isolation, even between acrylic and silicone (they just isolate differently at different frequencies, overall isolation is still similar).
 
May 29, 2015 at 8:11 AM Post #441 of 2,123
Before I received my 2000J I was hassling Brooko a bit and his feelings between A83, which one he preferred because I know he's an A83 fanboy probably as much as me. While he (carefully) never gave me a direct answer it was quite obvious there was leaning towards 2000J. I thought well, let's just see about this.

After actually hearing 2000J I know exactly where he was coming from, the Dunu can easily compete imo. ;)
 
May 29, 2015 at 9:01 AM Post #442 of 2,123
How is the build quality of the 2000J? I returned my A83 because of the left channel cutting out issue which has been well documented. I also had some fit issues and did my best to forget they were in my ears but they annoyed me when I had them on.
 
May 29, 2015 at 9:16 AM Post #443 of 2,123
subguy812 said:
  How is the build quality of the 2000J? I returned my A83 because of the left channel cutting out issue which has been well documented. I also had some fit issues and did my best to forget they were in my ears but they annoyed me when I had them on.
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It doesn't have removable cables, which in general means it holds up better unless you abuse your cables, in which they'll eventually give way.
 
DUNU has a reputation for good build quality. We tested two units; one had a minor bass imbalance, probably due to one side's escapement port being slightly clogged, but the imbalance was otherwise small. For everything else above 80 Hz, both channels were pretty much matched to 0.5 dB of each other. The second unit matched perfectly +/-0.5 dB throughout 20-20,000 Hz.
 
May 29, 2015 at 9:27 AM Post #444 of 2,123
They're comparable in build quality. I think one thing really giving 2000J its appeal are the housings, they look and feel very sturdy while remaining light. 
 
A83 looks a little beefed up on the strain reliefs, but 2000J is no slouch at all.
 
 
 

 
 
Also, the cable on 2000J is thicker than the original 2000. I guess due to the 4 strand concept. 
 

 
 
 
 
 

 
May 29, 2015 at 9:34 AM Post #445 of 2,123
Also, here's a couple shots of 2000 / 2000J housings together.
 
 
Give you guys an idea on how much smaller they've made the 2000J housings.
 

 

 

 
May 29, 2015 at 9:37 AM Post #446 of 2,123
Thanks for the input tomscy2000. I didn't even know Tyll meausured the FLC8. in fact, very little seems to have been written about it.

I'm still considering the 2000J.
 
May 29, 2015 at 11:18 AM Post #450 of 2,123

 
I matched up the axes of the DN-2000J with the K3003 data posted on Rin's blog. Technically, the two plots should not be directly comparable because they're two different measurement apparatuses, but they use the same amplifier source, driven to the same power level, and use ARTA without smoothing for data acquisition, so it's close enough. There is some debate on whether the K3003 has that much bass, as most measurements show it has bass more along the lines of the DN-2000J, but in general, the bass levels are still greater on the K3003, subjectively.
 
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