Impressions: DUNU DN2000J

I’d been wanting a hybrid IEM for ages, but I kept going back and forth: K3003, or the DUNU DN2000J?

Some people said just get the K3003 and stop thinking about it. But the K3003 is way too fucking expensive.

Others said the DN2000J matches the K3003 on technical ability — it just can’t command the K3003 price because it’s made in China.

W at work, the train lover, has heard the K3003. He said it’s nothing special: the sound is too high, too floaty, too sharp, not a good buy — especially once he learned I listen to everything.

“Honestly, for your taste, an Audio-Technica IM03 plus a Sennheiser IE80 is plenty. Don’t you already have the ER4P? Rotate those three and you’re covered.”

But I still wanted a hybrid, just to experience one. At least something above the 100-yuan mark — below 100 yuan I’ve already got the Xiaomi hybrid.

Thanks to a JD sale and 12 months of interest-free Baitiao, the dream came true.

The DUNU DN2000J isn’t new. It’s been on the market for a while, and unboxings are everywhere, so I won’t rehash them. I’ll just say the accessory pile is ridiculous — buying it gives you that “I didn’t get ripped off” satisfaction.

The shells are all metal, but supposedly not very durable and easy to scratch. DUNU clearly thought about that: you get a protective case, and even a set of shark-fin tips for comfort. Basically every element an obsessive-compulsive buyer could think of, DUNU thought of. Same approach as FiiO, the company closely tied to DUNU. I’ve always liked that style. It costs the manufacturer almost nothing but hugely improves how the owner feels — way better than what those aloof high-end brands give you, and at least it saves me the trouble of buying accessories myself.

One included accessory absolutely has to be mentioned: the ear hooks. These are the best ear hooks I’ve ever seen. Compared to the random garbage on Taobao, they’re in another league — I honestly want to ask whether these are sold separately. FiiO’s own C tips are identical to genuine Comply tips and work well too. You also get an absurdly good carrying case. The accessories are genuinely generous.

But accessories are accessories. How does it sound?

I plugged it in right away and was blown away.

Way too fucking sharp!

The last time I heard something this sharp was the Creative IE3 — but the IE3 is a single-BA IEM. How does the DN2000J, a flagship dual-BA-plus-one-dynamic hybrid, end up with this sound? Shouldn’t it be like the Xiaomi hybrid, with booming bass and clear highs? You’re a hybrid — I can’t feel the dynamic driver at all. It’s pure BA sound.

So I fell back on the old trick: listen to live recordings.

A true Hi-Fi earphone is not suited to heavily post-processed tracks with lots of electronic elements. That’s when you pull out live versions and check whether it can deliver a Hi-Fi-grade live reproduction.

One listen to 夏の林檎 (Live) and my hunch was confirmed.

On live tracks the DN2000J’s character genuinely startled me. The highs aren’t that abrupt, the lows are adequate, and the mids get slightly buried but that’s not a real problem. By comparison the IM03 reins in the highs and boosts the lows, so live songs sound a bit less open than on the DN2000J.

My impression is that it’s like an IM03 with the highs boosted and the lows pulled back a little — but thicker, because of the dynamic driver. Worth noting: the DN2000J clearly does not follow the Sennheiser IE80 path, and it differs from the ER4P in plenty of ways. I’d rather compare it to the Audio-Technica IM03.

Maybe an IEM like the DN2000J is aimed at the high-end route — live recordings and classical, piano, female vocals. Why on earth would you use it for Black Eyed Peas?

But long term, most of what I listen to is pop. So is this high-end IEM hopeless for that? DUNU gave you a solution.

The accessory box has a pile of tuning rings. Follow the instructions and you can boost the bass and cut some highs. I compared the noise-reduction ring and the bass ring, and went with the former. Their effect is similar: boost the lows, indirectly shave off some of the piercing highs, pull that lofty sound down, and make it fit pop as much as possible.

After adjustment the sound is satisfying. Most pop songs are enjoyable now. Bass still isn’t its strength, but it’s not the “clanging sheet metal” kind of bad, and the bass from real instruments — drum hits — remains high quality as always. What you lose is just the head-thumping effect cooked up in post.

Of course, if your taste leans heavily electronic, don’t bother. Yes, I mean fripSide.

The highs are the highlight. Transparency is the biggest strength — even after I cut them with the tuning ring, they’re still distinctive. The mids are decent, not pushed as deliberately as on the IM03. Sometimes I pull out some piano-and-unplugged female vocal tracks, and I genuinely feel the charm of the music. That’s something other IEMs can’t deliver.

Oh, and besides swapping tuning rings, you can cut the highs further by changing the source. I’ve been using a Walkman ZX1, while on the FiiO X7 the sound is too cold and aloof. Don’t worry about the ZX1 driving the DN2000J — this thing is sensitive as hell, almost a low-noise detector.

I’ve listened for almost two weeks, not really on purpose, but I should have some thoughts by now — and yet I can’t put them into sentences.

The DN2000J is a contradictory IEM. It’s easy to describe, and hard to describe.

Easy: its sound leans to the top end, extremely transparent — or, to put it harshly, “sharp.” If you listen to electronic music, some electronic effects come across as pure noise on this thing. That’s not the IEM’s fault; DUNU just isn’t suited to pop with an electronic flavor. Its Hi-Fi definition makes it better for live versions and high-quality, lightly processed audiophile recordings.

Hard: although it leans bright and doesn’t suit most pop, there’s a lot of room to adjust the sound. With all those tuning rings, after some fiddling you can make it “pop” — though I don’t think it ever reaches a true pop tuning. Still, that “classical with a slight pop lean” style has its own flavor.

Another thing: the DN2000J is absolutely comfortable to wear, but because the shells are metal, you often get static. Your ears and the shells build up charge from friction with clothing and then crackle. Continuously zapping your own ears may be fun, but I’d call it noise. I’ve had the same thing on the K374, which also has metal shells. Didn’t expect DUNU to do it too. Using the clip well minimizes it, but it’s still annoying.

W at work listened to the DUNU and said its sound signature is the same damn thing as the K3003. I asked, curious: “Is the K3003 that sharp too?” “I wouldn’t call it sharp. That’s just its transparent style — not pop. The two are pretty similar.”

Thinking about it, he’s right. The DN2000J is headed toward live reproduction and classical music. If you like pop, I think something around 500 yuan is enough.

For me, though, it’s more about buying a hybrid and fulfilling a dream. Luckily the DN2000J is fun to tweak, comes with plenty of accessories, and is well built. I should be able to enjoy music with it quite happily.