Foreword
As the creator of the Titan 1 thread on head-fi, I have most of the information given here placed in the thread; however, this review is a coalescing and enhancement of the various aspects of the DUNU Titan 1 that I've previously discussed in the thread. Anything that I don't bring up here is probably found in the first post, or any of my other posts in the thread.
Special thanks goes to Andy H. and the rest of the Taiwanese office of DUNU-Topsound for their graciousness in accommodating me in their office, as well as their continued, forthright attitude toward improvement. I admire their hardworking spirit and hope for their continued success.
This review of the Titan 1 was made with a sample unit provided by DUNU. For specifications and a list of accessories, please visit the Titan 1 product page.
Introduction
DUNU is no stranger to head-fiers around the globe; it's been making its footprint known around these forums for quite a few years now. The Titan 1 is the first dynamic-only product from DUNU in a while; they'd been concentrating solely on hybrid products for a span of nearly two years (and continue to refine those efforts), garnering critical and mass acclaim, so when they quietly slipped the Titan 1 into their late 2014 launch portfolio, few heads turned. It was a semi-open design that looked like it came from the early 2000s, and even if it did contain a titanium diaphragm, a good lot of head-fiers probably didn't expect much out of it. My head did turn because of my prior experience with half-open IEM designs. Early in 2010, my experience with the Superlux HD381F was a revelation that cost was not tantamount to sound quality. In 2012, the crystal-clear Phiaton PS210 reaffirmed my belief in the half-open IEM paradigm. It seemed consistently practicable for audio manufacturers to create a great sounding IEM with this "half-open" style. So when DUNU came out with a titanium-coated driver in this same body design, I knew they were up to something. While titanium-coated diaphragms are not new to the industry, they do have well-documented properties that make the sound they create desirable to audio enthusiasts. Thus, I took the initiative to post about the Titan 1 in the forums. To me, it represented a sweet spot in value and performance, at the expense of absolute sound isolation (which really isn't the strength of a dynamic driver IEM anyway). Slowly but surely, interested mounted, and the Titan 1 is now a well-regarded product in its price category.
Build, Ergonomics, Accessories
The Titan 1, made from cast metal components, is one of the more solid offerings in its price bracket. Build quality has never been an issue for DUNU; they're known for delivering robust builds at every price point, from the body to the cables, and even its accessories. It comes with a simple plastic hard case that, while not declared to be waterproof, probably can withstand a two second dip in a bowl of water because of the ruggedized rubber on the inside surface that extends all the way to the top of the case. DUNU continues its tradition of offering great carry cases with the Titan 1.
It has a ton of tips available, including a whole set of faux Sony hybrid tips, which is the tip that DUNU designed the Titan 1 around. DUNU also included another set of red core, dual-density silicone tips. Both sets were accompanied with a redundant pair, which makes the Titan 1 one of the most well-appointed IEMs in its price range. Personally, I settled on a third party brand of tips from RedGiant (see explanation here), but because these tips are difficult to come by unless you buy a pair of RedGiant IEMs, I won't attempt to recommend them to others. In fact, I hesitate to recommend specific tips for people, as everyone reacts differently to different tips.
Finishing of the cables above the Y-split is very good, almost Audio-Technica like in its texture; the thinness doesn't bother me. It's the cloth sheathing of the section below the Y-split that can be prone to tangling at times. Luckily, DUNU integrates its awesome rubber cable tie into all of its products, and that thing definitely promotes good storage habits. I don't imagine too many people shoving the Titan 1 into their pants pockets recklessly when coiling the cables in advance is so easy. I don't think I need to comment much on the quality of the Y-split and 1/8" plug; DUNU's cable joints are always well relieved.
The only thing is that, as a $115-ish unit, the kind of attention to detail paid to the metal finishing is limited. No one will really mistake the Titan 1 for something more expensive. The brush metal finish is more Timex to the K3003's Omega. However, as it does have a rugged metal body at this price point, I won't complain.
Comfort is great, personally. This sideways-mounted, half in-ear design tends to fit in most peoples' ears pretty well, and I never really feel any wear fatigue with the Titan 1. The body of the Titan 1 is small enough such that it should fit comfortably within most peoples' conchae with ease (even females'). When used properly, I don't anticipate any risk of them falling out of users' ears. The weight of the metal shells, however, will take some adjustment time for people used to very lightweight plastic-bodied earphones.
Design & Packaging
The aesthetics of the Titan 1 body lean toward the traditional; the sides exposed to the outside are reminiscent of the Sony MDR-EX90LP and the Superlux HD381F, while the inside half is similar to that of the Atomic Floyd Hi-Def Drum, along with a color coding ring of red or blue in the middle to denote right or left. As so, the Titan 1 isn't flashy in the least bit, save for the splash of chrome on the brushed finishing. Nevertheless, I doubt the Titan 1 would attract too many sticky-fingered bandits, and that may be a good or bad thing, depending on your perspective.
Here comes arguably the weakest part of DUNU's products --- the packaging and associated graphic design. The graphic design on the Titan 1, and quite a few of DUNU's other products, is a bit unrefined. It's not for lack of effort; it's obvious DUNU has taken great pains to illustrate all of the great features found within the Titan 1 and other products, but the execution doesn't quite work in its favor. Certainly, DUNU has gotten a lot better over the years, but the design still feels a little cluttered, a bit lacking in typographic awareness, and a bit try hard --- not everything absolutely needs to be explained on the box itself. There were quite a few rough inconsistencies with regard to typography; fonts would switch from Arial to Calibri to Times New Roman, ever so distracting to even the untrained eye. I was even surprised to see that the Chinese punctuation marks, normally set centrally in space, were set down low like their Western counterparts, which is normally an error created by WYSIWYG layout programs like Microsoft Word. I won't bother discussing the English grammatical errors --- I actually believe that's easily corrected --- many head-fiers could volunteer to copy edit these box descriptions.
Of course, being a company that spends the majority of its product development budget on R&D, DUNU delegates these graphic design responsibilities to a single product manager who doesn't necessarily have the kind of visual pedigree of a dedicated graphic artist and layout manager. If DUNU were to spend more money outsourcing its packaging design to a third party source, I suspect the Titan 1 would end up costing at least 10% more. That's 10% more burden on the consumer, as well as 10% more burden on the distributor, who doesn't necessarily want to take the risk of carrying products from a lesser known company. Nevertheless, I continue to encourage DUNU to take steps in improving their package design --- doing so probably begins with lessening the workload of that said product manager for a few weeks, allowing him to freely explore the realm of graphic design and typography, and having him return with a newfound sense of direction to bestow upon his fellow coworkers. I sincerely believe a boost in graphic design and layout will do wonders for DUNU's public image, especially for the all-important headphone market of Japan.
Sound
But enough with my snooty rant on design. Onto the good stuff. When I first listened to the Titan 1, this is what I thought:
People have different metrics for what they regard as good sound --- the Titan 1 will fit most peoples' definitions, as I surmise most will say, "Whoa, that's pretty good sound!" when they put them on for a few moments. With a longer listen, my thoughts evolved into these:
Bass
Thus, bass is where the titanium-coated driver makes its presence known best. It feels quick, and brings out multiple nuanced layers in bass-forward music. There is quite a bit of boost to the range, so the Titan 1 will sound thumpy enough for those that desire a little bit of kick to their bass drums. Thanks to the open feel and diaphragm material, however, the Titan 1 never smothers the listener with bass. I believe this is the best kind of bass response for those that want to hear a thumpy low end but still desire a clean sound. If only more mainstream earphones exhibited this kind of response...
Midrange
Midrange is a different matter. Depending on personal taste, you might run hot or cold with the midrange response. People who mostly desire to hear instruments and rhythm will be absolutely thrilled with the midrange on the Titan 1; vocals are never the centerpiece of music, but they also never sound muffled --- always clear.
However, I'm not so high on it because I just don't feel a lot of emotion to the midrange --- the laid-back midrange signature, to me, would be the Titan 1's biggest weakness. I hear a lot of detail, but to me, it doesn't do much to enhance a piece of music --- it's mostly just there and will never stand out as the centerpiece to a piece of music. Human beings, regardless of musical preference, are still emotionally most in-tune with, and physiologically most sensitive to the midrange, and thus for me, I tend to harbor very stringent standards for midrange performance in an IEM, regardless of price range.
To me, more analytical earphones like the Etymotic ER4, UERM, and even DUNU's own upcoming DN-2000J (which itself is slightly laid-back in the midrange) are able to convey the emotional component of music through their transparency and vocal definition. In the same price range, the HiFiMAN RE-400 also does a better job in this regard.
It's not to imply, however, that the Titan 1's midrange is bad. It's anything but. You'll be hard pressed to find more detail from other earphones competing against the Titan 1, especially as the upper midrange does have a bit of kick to it and is highly detailed.
Treble
The Titan 1 will be perceived by the majority of folk as being somewhat bright, especially in the context that the midrange is "recessed" with respect to the treble --- that alone gives listeners the sensation that the Titan 1 is "bright". The midrange, prominent is in the upper reaches, is typically responsible for vocal harmonics that often extend into the treble; thus, prominent upper mids and lower treble both add equally to the perception of brightness.
Brightness shouldn't be misconstrued as overtly harsh or sibilant, however. In general, I expect sibilance with many pieces of modern music these days. People should not be confusing recording sibilance with earphone sibilance. That said, the Titan 1 is a tiny bit prone to sibilance; the time course of it is very quick, however, so the sibilance is not bothersome. Rather, the overall brightness of the earphones can be a little off-putting at times. On a track like Stacey Kent's "So Many Stars", lower sibilance (6-7 kHz) is not the issue to my ears, as the decay speed is pretty quick. Yet, I tend to hear some 8+ kHz harshness, which I tend to call "sonic junk" rather than overt "sibilance".
The smoothness of the treble will depend on the tip pairing; it shouldn't be too difficult to find a pair of tips, whether they be silicone or foam-based, that help shape the treble to personal taste. Just be prepared to do some experimentation.
Sensitivity
The Titan 1 is remarkably easy to drive. It's sensitive to the point where it really takes very little for any underpowered iPod or laptop to easily drive it to loud volumes. As a low volume listener, I usually set the volume slider in the Windows environment at 2-4%. Luckily, the Titan 1 also still benefits from a higher quality source, as all things being equal, the Titan 1 is nevertheless still a low impedance (16 ohm), reactive load (dynamic moving coil). This means that better, more efficient and current and voltage delivery will allow the Titan 1 to perform better. So yes, if you want to amp it, you can. From my Resonessence Labs Concero HP, which outputs a nominal 3.5 Vrms, I'm also listening at 2-4% (usually 2%),
How I Use the Titan 1
So here's the part where most people would expect to see that because I have "better" equipment like TOTL CIEMs, the Titan 1 gets thrown in the dust bin. That assertion is simply not true. Because to me, the Titan 1 is remarkably easy to insert and remove, and performs well from a variety of sources, I find myself gravitating to it as my daily use desktop IEM. It's just easy to get along with. The isolation is at a level where fan noise is cut down, but won't prevent me from noticing a ringing phone call. At very low volume levels, the laid-back midrange is less of a liability because of hearing threshold levels.
Summary
With the titanium treatment to the Titan 1, DUNU has launched their "Titan Series" of products. I'm looking forward to seeing them further enhance this technology, and optimize it for use in future offerings. Already, the upcoming flagship DN-2000J, with an enhanced titanium-coated LCP woofer, is sound very good indeed, and I expect DUNU to continue this trend of excellence.
As a product, while not the versatile and isolating indoor/outdoor unit, the Titan 1 is an extremely capable IEM. It provides the listener spades of tactile detail with celerity, and while it isn't a product that will be tugging at your heartstrings, you'll still be able to hear just about everything else in your mix with immense clarity and transparency. For new entrants to the in-ear world, the Titan 1 is great because of its shallow, easy fit; newbies will undoubtedly be wowed by how clear it sounds. Veteran head-fiers will equally enjoy it as a speedy toy that transcends its price point with detail reserved for much higher-end products. Individuals craving an intimate, husky response will want to look elsewhere, but for nearly everyone else, the Titan 1 will be a very nice addition to their collections.