Booming bass and excellent balance. You would be amazed by the fluent booming from DUNU DN-23...

DUNU DN-23 Landmine. Headphones earphones

Average User Rating:
4/5,
  • Booming bass and excellent balance.

    You would be amazed by the fluent booming from DUNU DN-23 Landmine. It's the latest DUNU In-Ear Earphone labored to ensure your very pleasure. Now, you can enjoy the powerful, elastic bass alongside excellent balance. In the mean time, Landmine has refined streamline titanium body and solid, durable metal build.

    DUNU unique tuning technology ensures the great balance in different frequency. Also you can hear the crisp and crystal sound for the best recognition. Exceptional booming bass will rock your world. You can feel the music Instruments flows smoothly and correctly.

    Get rid of annoying surrounding noise
    DUNU know your desire to be not disturbed. For your pleasure, all DUNU carefully designed earphones can block ambient noise by 26 dB. Thus, you don't have to endure that any more.

Recent User Reviews

  1. bowei006
    4.0/5,
    "Good unit for price, sound and quality"
    Pros - Balanced Sound, bassy, but detailed
    Cons - Harsh upper mid, and weight issues
    Introduction:
    Dunu by Top-Sound is famous for offering well made and accessorized earphones to IEM's to the market. They are popular on Head-Fi and around the world. With earphone offerings from a wide range of features and prices, many can usually find one that fits their needs. Today we have the new Dunu DN 23 Landmine to review. It is one of the upper echelon's of Dunu products to come out in recent times. It looks a lot like their other earphones and uses many build qualities of their siblings, but make no mistake. For this IEM is about to set off a landmine of its own. I wish to thank Rocky for sending me this review sample. 
     
    Read the full review here:
    http://www.pandatechreview.com/dunu-dn-23-landmine-review/

    *NOTICE*

    The Red Driver is the 'right' side and the Blue Driver is the left side. You can remember this as Red is right. 

    Build Quality:

    The Dunu DN 23's build styles are similar to the DN 22M Detonator and various other earphones that Dunu offers. This means that the driver is thickly made of a metal substance, and the wire is thin and exits straight down without offering any obvious over ear features before terminating into a 3.5mm plug. But of course, the Landmine features its own differences. The driver housing as usual, is heavy, ergonomically sized, and armed with slight colors to back the metallic look. However there is a convex dent in the driver this time around. This doesn't add any weight inbalance issues or anything, its just different from the smooth driver shapes that Dunu usually offers. There is nothing bad to say about the build of the driver unit itself. It's well built with no obvious weakness in structure or anything. 

    The driver housing although, with its dab of color, great feel, and look does have the same issues that its siblings have. It does get a bit oily after a bit of touching it (depends on your hands of course) and its weight works against it. Dropping the Dunu's down onto the table or anything is not recommended. The weight of the unit also means that fall damage is increased or is an actual cause for concern now. Most people can just let their earphones drop to the table with no problems. But the weight of the drivers is just enough for it to be a cause for concern if dropped while not being enough to cause any slipping out or heaviness while in the ear. I have noted this on every single review sample I have received from them.

    The cable is nicely made and is one of my more preferred styles. The cable is silky like angel hair spahgetti, but also offers enough hardness to keep position without whipping around everywhere. It isn't micro-fiber braided and so can offer a bit more water resistance if some does get on it. It is also easy to clean and feels of good quality.  The neck slider and cable splitter section is made extremely well. Immediately opening the package, I noticed how good the neck slider apparatus was. It's made of plastic but looks like metal with a silvery DUNU brand sign on it. It looked great, and unlike the DN22, the neck slider went all the way up. 

    The termination for the plug is V shaped and is made of hard plastic to prevent damage from long term use. The metal cuff at the end near the plug also adds great asthetic values to the units.



    Microphonics:

    This unit is mainly microphonics free. Microphonics is the sound of the cables moving or rustling as you move around. The silky cable eliminates most of it as long as the earphones are fitted properly in the ear. Pulling up the neck slider while going on jogs will eminate the rest.



    Isolation and Leak:

    The Dunu's are closed and do not offer any ported openings. The heavy metal construction also prevents the majority of leaking or any problems. Of course this is entirely dependent on the user's fit and volume they are listening at. But the DUNU's do a good job of isolating most things in the world. 

    Usability:

    The DN 23's are some of the easiest headphones to use, put away and store. They do not offer an over ear design, so the driver unit itself is just those two units. The cable is fluid, and the case is small and ergonomic. Putting the units away is as easy as pinching the two unit cables together near the drivers themselves and wrapping them around your hand. Then you just put them in the soft-shell case taking note of the indent and voila. The V jack also helps when used on the go with PMP's so that it doesn't 'poke' around your pants if upside down and what not. 



    Amp requirement:

    These are pretty sensitive. Thus, they do not need an amp to drive, but depending on who you are and how loud you listen. It could be good to use an amp to get lower volumes. As an iPod at half volume already outputs a good amount of sound through these. So be wary and always start with very low volume as you initially listen.



    Testing:

    The DUNU DN 23's were used with my custom Project-H amplifier, iPod Touch 2G, FiiO E12 and FiiO X3 DAP. They were burned in for about 15 hours before this review was done. 

    Highs:

    The DUNU's do not really feature the highs too prominently but they are there. They are hidden away for the most part and show up if the song needs it. They are sharp and bright. This adds to some songs, but they aren't a very proper high frequency range, the resulting frequency is just that. A high frequency noise the helps with the higher pops and hits of the song. The extension is where the majority of the issue or non issue lies. For there really is no high frequency extension past the first ranges of the frequency. Too often, a product tries to add all the frequencies in, this leads to a mess of how they interact with each other, and creates very fatiguing problems. The DN 23's are able to skillfully avoid the problem through its subdued high frequency range. It's just enough to show up and work with most songs, but not enough to be reference class. This however is a feature that I love and would rather most sub $100 headphones use. If you can't do it at this price range(most can't), then don't do it. 

    -hidden highs, little presence, but smooth for the ranges it does present, good as its non analytical-

    Mids:

    The mid range of the DN 23's are quite prominent, instruments hit and they hit hard. Dunu is quite known for a spike in the upper mid range, and that is visible here as well. This allows cymbals, guitars, and other string instruments to have that sharpness to them. Rock genres benefit from the upper mid spike, however it is often done improperly. This happens when its not smooth, the spike is too high, or the speed of the mid range isn't able to keep up with the instruments. I am personally sensitive to upper mid spikes, these thus for most rock do get fatiguing for me. It isn't a problem if the mastering is good, but most modern rock isn't, and that is where the problem lies. The mid instruments are more prominent in presentation than the vocals and thus a bit more weight to them in how they sound. 

    The instruments own detail is quite average. You can indeed hear what is being played, but they don't personally stand out. The upper mid spark brings them alive, but they are still overall a bit dull. The seperation however is quite good if the recording is good. They don't mush together and do allow themselves to be discriminated from others.

    Overal, I'd say that the mid range is done wonderfully and it is thanks to its slightly dulled qualities. This is not a reference earphone, however it does work well with songs that are mastered well. The slight dulling allows it to be more compatible with a wide range of genres. Bad mastered rock is still going to be a problem with the Landmine's due to the upper mid spike, but for the most part, it is masterfully done for a big range of genres. 

    -prominent mids, upper mid sparkle, average detail but upper mid instruments are sharp, multi-genre able-

    Vocals:

    The vocals are quite forward but are a bit dull. The lower and mid vocal range is a bit more laid back (its already forward) whilst the upper vocals do have that sparkle that the upper mid spike also gives them. This means that as they go to hit the high notes, the vocals do 'shine' and bring themselves out.  This works quite well for classic rock genres and hip hop as it allows for the singer to be front and center. However, I would like it more if the vocals distinguished themselves from the rest of the song. The vocals are very close the the mid range instruments and the seperation is just enough to tell them apart, but not enough for a truly spacious feel. 

    -close to the mids, but forward and are brings out the singer, average separation, lack of space-

    Lows:

    The DN 23's are a bassy headphone, but the bass doesn't overwhelm the rest of the ranges. The mid bass does slightly intrude into the vocal and mid range areas as they will get a bit muddied up, but its only slightly, and only if the song is a fairly bassy one needless to say. For the most part however, they work well with the song and provide bass when needed and don't go overboard when there isn't need for them. The mid bass thump is fairly prominent and is what is the most prominent in this range. The upper mids are there and offer a good basis for the low end after the mids, but the mid bass is really what is there. The sub bass and extension however is a bit poor after the mid bass, they don't dig deep and don't offer the same kind of presentation as the mid bass. The bass operates when a needed 'oomph' is required in the song, but doesn't intrude when there isn't a need for it. The bass is tuned wonderfully for the Landmine.

    -mid bass centered, poor sub bass and extension, works with the song to fullfill the bass role without going over-



    Overall: The DN 23's work well with a majority of genres. The upper mid spike allows for artists and instruments to sound sharper, but are personally too much for me and thus are fatiguing. Many are not like this, and with great mastered tracks, the upper mid sparkle is fantastic. Instruments are really brought to life and the artists are prominent in their sonic reproduction. The lack of high end extension or quality is fine with me, as its not totally gone and still helps well with the sound. Overall, I'd say that the DN 23 is a very well put together unit that balances the 3 ranges out well enough to sound good with a big portion of music. If you don't get fatigued by sharp mid ranges, then these are great headphones for you as they offer a good sound for the price

    Specifications:

    Driver: 10mm

    F Responce: 16Hz to 22KHz

    Sound Pressure Level: 120+-2dB at 1KHz/1Vrms

    Impedence: 16 ohms

    Noise Attenuation: 26dB

    Plug Type: 3.5mm Gold platted

    Cord length: 1.2m

    weight: 28g

    Price: $80

    Ratings:

    Build Quality: 8/10 (for drop potential)

    Isolation: 9/10

    In ear feel: 8/10

    Microphonics: 9/10

    Usability: 8/10

    Sound quality: 8.5/10

    Overall: 8/10

    Value: 9/10
  2. mark2410
    4.5/5,
    "DUNU DN-23 Landmine Quick Review"
    Pros - Bass, bass and bass. Sweet and delicate highs.
    Cons - See Pro’s. Its sound sig is highly flavoured.
    DUNU DN-23 Landmine Quick Review
     
    Full Review at http://www.head-fi.org/t/676274/dunu-dn-23-landmine-review
     
    Thanks to DUNU for the sample.
     
    Brief:  An awe inspiring bass cannon.
     
    Price:  US$85 or €79 (£68)
     
    Specification:  Type HQ (10mm), Sound pressure level 120+-2dB, Impedance 16 ohms, Frequency response 16 Hz - 22 KHz, Noise Attenuation 26dB, Weight 28g, Plug Size 3.5mm Gold-plated, Cord Length 1.2 m
     
    Accessories:  Everything.  A hard case, a soft baggy, a bunch of tips, 6.25 to 3.5 mm jack, aircraft adapter, shirt clip, and of course the greatly useful built in cable tie.
     
    Build Quality:  Nothing short of excellent.  DUNU have about the best build quality you’ll see anywhere.
     
    Isolation:  Rather good for a dynamic.  It’s sealed so you block out enough for most day to day things, not really quite up to daily Tube commutes or trips to New Zealand.  As ever easily enough to get you run over if our not looking where you’re going.
     
    Comfort/Fit:  Great, no issues what so ever despite it being a sealed dynamic.
     
    Aesthetics:  The finish on them is superb, that high lustre, burnished near black outer looks good.  It’s probably more subtle than some would like but it’s, in my opinion, first rate.  I also greatly like the red and blue accents on the buds.  In short they tick the boxes of everything I like visually in an IEM.
     
    Sound:  BASS!!!!!!! I could really leave that as the full review and I don’t think it would be overly remise to do so.  The bass is entirely what the DN-23 is about.  It’s of an excellent quality being both highly impactful and full bodied enough to do essentially any bass style you should ask of it.  Fast punchy dancy pop or smooth, rich, sombre jazz it can do with equal effortlessness, but it’s still a bass cannon.  There is a lot of bass.  Lots and lots and then lots more on top and it never really goes away.  The mids and highs are very competent.  The mids are rich and flowing, the highs detailed, sweet and delicate.  I could say much praise worth about the highs but it’s all about the bass.  Just so much bass, so much power!  I haven’t the slightest fear that there are not loads of people that want just this sort of bass.  It is awesome. 
     
    Awesome if you want a magnificent bass beast.  Less so if you don’t really want the bass overshadowing the rest.  It’s a bit of a shame as the rest of the sound spectrum is very competent particularly the highs, them I really liked.  It’s a very flavourful sound you’re getting here and as long as you’re happy with that flavour you’re on to a winner here.
     
    Value:  Great bundle as always. Superb build too.  Sound is great but highly bass centric so great if you want that, if you want more balance then it’s not really the IEM for you.
     
    Pro’s:   Bass, bass and bass.  Sweet and delicate highs.
     
    Con’s:  See Pro’s.  Its sound sig is highly flavoured.
  3. Armaegis
    3.0/5,
    "decent sound, decent price"
    Pros - lots of accessories, solid build
    Cons - heavy
    Points of Reference
    home: modded Hifiman HE-6, custom Beyer COP w/T50rp drivers
    portable: VSonic GR07, Nuforce NE-770, modded Sennheiser Amperior, modded Pioneer HDJ-2000
     
     
    Accessories
     
    The Landmine comes with a generous array of accessories. Included are the usual adapters for 6.5mm and airline use, a shirt clip, *two* carrying cases (one hard, one soft), and a whopping ten pairs of tips to fit a wide assortment of ears. All the tips share the same silicon texture, and come in varying sizes and stiffnesses, and one set of double flanges. I was hoping there would be a foam one in there, but alas no.
     
    There's also a card to write down when you send it in for repairs/warranty. Um, ok, I guess a little foresight never hurt.
     
    Build Quality and Cabling
     
    These are very solid feeling iems, with a nice metallic form factor and a bit of heft. I do find them a bit heavy though. The splitter and chin slider are a nifty assembly that actually took me a while to realize that it actually came apart. The jack itself is at 45° and seems reasonably well built with a slim form factor.
     
    The cable isn't anything out of the ordinary. Just the right thickness to it, good flexibility, low memory (though still little kinks). The strain relief on the jack is good, allowing a mild degree of flex. I wish the strain relief on the earpieces were a little softer to distribute the stresses over a wider area.
     
    Microphonics are rather low, which was surprising as I didn't notice anything particularly special about the cable. I think perhaps the tip I chose actually made a difference here. In any event, with music playing the cable noise was pretty much a non-issue for me. Wearing the cable over the ear only made a slight difference.
     
    There's a cable wrap built in to the cable which is a nice touch. I kinda wish it were detachable though, so I can pilfer it and use it with other iems or headphones.
     
    Comfort/Isolation
     
    With the wide assortment of tips, I did manage to find one pair that fit me reasonably well (the small stiffer one with orange centre). This is a rarity for me, as I have a notoriously difficult time getting iems to fit me properly. As such, these actually provide an above average isolation for me. On the flip side, the stiffer materal does make them feel a bit “tight” and took me a bit more time to get used to. Even then I don't like to have them in for more than an hour.
     
    The weight also factors in to a bit of discomfort as they do literally feel heavy, and they can eventually dislodge when walking unless you wear the cable over your ear. Even then, I have smallish ears to the cable wasn't quite flexing enough to form comfortably around my ear. It wasn't bad mind you.
     
     
     
    Sound
     
    I actually didn't even know the price of these when I picked them up for review. Upon first listen, my initial thoughts were “well, sounds like a $60-80 iem”. So then I looked them up and the MSRP is $80. Guess I was spot on there.
     
    First of all, the Landmine are very sensitive. You do not want to run these off any sort of amp with high gain. Anything with a noise floor is also pretty much out of the question. It also sucks if your amp is susceptible to interference, because that gets very very loud (as a random aside, my cell phone interference sounds like an Atari game... assuming you kids even know what an Atari is). While the higher sensitivity means louder sounds and typically better battery life for your portable device, I
     
    If I had to sum up my sonic impressions here: decent performance, “consumer” oriented sound.
     
    Bass resolution is average. It reaches quite deep and has some decent body to it, but lacks a strong punch. Turning it up just makes it muddy. Electronica comes through quite well here. I got the sense that it was more of a bass shelf rather than midbass hump. Either that or the hump is exceedingly wide across the entire range (so a bit like the typical Senn HD600/650 shape). If I had to hazard a guess, it feels like the entire bass shelf is about +6dB up.
     
    Moving into the mids, the transition is quite smooth and gently slopes down. Since there's no sudden drop, there isn't that typical midrange recession that some may be familiar with, but the sound will seem a little less defined in the vocal range due to the stronger bass and midbass presence. There isn't much else that particularly stands out about the mids here.
     
    As we move into the upper mids, there's a brief drop before it start slowly climbing to the first low treble peak. This would be my main gripe with the sound. Clarity isn't the greatest for vocals or strings. The tones are there, but lack definition. At the same time though, they also have a really heavy weight to them due to that broad treble peak. On headphones with narrower peaks this may manifest as ringing or a sharpness that can be grating. In this case though, it's not so much a sharpness as it is like a slow pressure build. It's fatiguing, but in a different way. In a way it actually lends quite well to percussion and cymbals as they hit hard and fast.
     
    So my feel for the overall sound is that it is a literal V-shape. Gentle slope down from an elevated bass, then a gentle slope up in the low treble. After that it's the typical treble wobble, and here all bets are off because the shape of your ear canal takes over. I only noticed one other peak after the first one, so overall control and resonances seems good.
     
    Overall soundstage is decent but nothing to write home about. For me, I find most of my sense of staging comes primarily from the upper mids, so obviously with the dip then treble peak things won't sound quite right. There was also a very slight channel imbalance in mine (with the right side riding ever so slightly higher around the 1-2kHz range), so that was affecting my sense of stage as well. I'm sure most people wouldn't even notice that, but I'm playing through specific test tones and sweeps for the sake of this review.
     
    Now all this makes it sound like I'm ragging on the sound, and in a way I sort of am, but I'm not done. All the above was listening at home, running through an iBasso D10.
     
    Playing through a Nuforce HDP, things were different. The gain was too high so I had almost no useable range on the pot, but the sound was much groovier. The higher output impedance made the Landmine even more bass sloped and drummed down the treble... but you know what? That's ok. Now we're at a thumpy groovy sound and it's just fun to listen to.
     
    On the go I played through just my Sansa Fuze. It wasn't too different from the D10, but while outside the V shape is actually more suitable. The midrange is what your ear is naturally acclimated to, and you lose the top and bottom when there's external noises coming in. So the boost from the Landmine actually helps give a more even sound when out and about, with a welcome bass presence and a treble that no longer felt heavy. Overall, I enjoyed these far more when used outside than indoors.
     
     
    TL;DR
    - generous selection of tips and accesories
    - good build quality
    - good fit and isolation
    - low microphonics
    - heavier than average
    - V-shaped sound: gentle slopes on both sides
    - deep but only moderately punchy bass
    - very broad treble peak gives a non-resonant but heavy pressure feeling
    - better for on the go rather than home listening

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