DUNU Titan S2 Review

DUNU Titan S2 review featured

In this article, I review the DUNU Titan S2 IEM. The Titan S2 features a single dynamic driver and a modular cable with interchangeable plugs. It’s priced at $79.

Established in 1994 DUNU began as an OEM/ODM manufacturer. The DUNU brand was officially launched in 2004 and started creating earphones under the same name. Since then, they’ve earned a reputation as a respected IEM manufacturer within the enthusiast community.

Disclaimer: This sample was provided by DUNU for an honest review. All observations and opinions here are my own, based on my experience with the product.

DUNU Titan S2 Review
Verdict
How would you rate this product?1 Votes
Pros
Punchy mid-bass
Forward vocals
Wide soundstage & precise imaging
Good detail retrieval
Excellent cable and variety of eartips
Cons
Bass extension could be better
Moderate resolution
4
Our Score

DUNU Titan S2

Specifications
  • Net weight: 17.2 g (8.6 g Per Side)
  • Frequency response: 5 Hz – 40 kHz
  • Impedance: 16 Ω at 1 kHz
  • Sensitivity: 107 dB/mW (@1kHz), 125 dB/Vrms (at 1 kHz)
  • THD: <0.5% at 1 kHz
In the Box
  • DUNU Titan S2 IEMs
  • 0.78mm 2-pin 4-core OCC Copper and Silver-Plated OCC Mixed Cable
  • 3.5mm and 4.4mm plugs
  • Carrying case
  • Shirt clip
  • 13 pairs of silicone eartips in 4 different styles
DUNU Titan S2 design

Design

The DUNU Titan S2 has polished chrome-plated housings with red highlights and a cyberpunk aesthetic. I know visual design is subjective but in my opinion, this is one of the coolest-looking entry-level IEMs I’ve seen in a while.

The shells feel robust and substantial but not heavy. There’s one vent on the inner side of the shell and another near the base of the nozzle. The 2-pin sockets are slightly recessed to provide extra stability and protection.

When it comes to comfort, I find the Titan S2 fantastic. The shells are reasonably small, the nozzles are angled just right and there are no sharp edges or protrusions. Passive noise isolation is decent.

The included silver-plated copper cable has a nylon shock-absorbing mesh sheath that is somewhat thick but lightweight and flexible. It also includes DUNU’s Q-Lock interchangeable plug system so you can easily switch between the included 3.5mm and 4.4mm plugs. This is an outstanding cable and one of the best you’ll find bundled with a sub-$100 IEM.

Titan S2 shells with case

Sound

Gear used for testing includes the DUNU DTC 480, Topping E70/L70 combo and HiBy R3 II. With its low impedance and 107dB sensitivity, the Titan S2 is relatively easy to drive, however, I found it responded well when paired with more powerful sources.

The DUNU Titan S2 has a U-shaped, cohesive and musical sound signature. Its safe tuning offers a balanced presentation without pushing too hard on the bass or treble. It’s slightly on the warmer side of neutral in tone but is no slouch when it comes to technical performance.

Bass

The mid-bass hits hard, with a nice punch that doesn’t linger too long. It’s got a good body to it, and you can really feel the weight of it. It’s strong in the mid-bass, but the deep stuff is a bit rolled off. So if you’re all about that super low-end rumble, these might not be your jam. But for EDM, hip-hop, or jazz, the bass is plenty satisfying, at least for my ears.

Midrange

The midrange presentation is largely neutral with a subtle warmth, preserving clarity and articulation. While it’s not the most transparent, it prioritizes a natural tone over clinical precision.

String instruments and male vocals have good size and enough richness to give them natural body. A lift in the upper midrange adds clarity to the underlying warmth. It’s smooth and versatile enough for all music genres, even if somewhat lacking in dynamics.

Treble

The Titan S2 achieves clarity through a lifted upper midrange and upper treble peak. The treble is smooth and slightly warm, contributing to a natural overall sound. It’s quite detailed and sparkly and complements the midrange, offering a good balance and extension. The upper treble widens the stage and adds plenty of air.

Soundstage & Technicalities

The soundstage has impressive width and moderate depth. I found the Titan S2’s imaging above average, with precise positioning and layering, despite its warmer undertones. Instrument separation is good but it’s not the most transparent or resolving IEM. Detail retrieval is slightly above average with plenty of micro-detail information coming through.

Comparisons

Kefine Delci ($75)

The Kefine Delci (review here) has significantly more bass authority, particularly in the sub-bass. Delci’s upper mids are not as forward and not as shouty, however, it is slightly more prone to sibilance due to an 8kHz peak.

Delci’s stage isn’t as wide but its imaging is on a similar level. Overall, I find the Delci sounds more dynamic but those who like a focus on upfront vocals will appreciate the Titan S2. The Delci comes with sparse accessories compared to the DUNU’s generous bundle.

Simgot EA500LM ($89)

Simgot’s EA500LM (review here) has better sub-bass extension but thinner mid-bass notes. This gives the lows authority but better definition at the same time. So the EA500LM has more rumble but less thump.

The Simgot’s vocals and upper mids aren’t as forward. Female vocals aren’t as vibrant but they’re slightly less prone to shoutiness. In addition, the EA500LM’s mids are a tad more resolving.

Soundstage dimensions are similar but the Titan S2’s stage is slightly wider. Detail retrieval is very similar on both IEMs (both are above average) but the Titan S2’s imaging is more precise.

Both of these IEMs are excellent performers. While the Simgot comes out ahead ever so slightly in audio quality, being smoother and more balanced, the DUNU comes with a high-quality modular cable and best-in-class eartips variety.

DUNU Titan S2 with box

Verdict

If I were asked to recommend a good sub-$100 IEM for someone starting in the hobby, the DUNU Titan S2 would be high on my list. Its balanced sound signature, clear midrange, and smooth yet detailed treble make it a versatile choice.

While it might not redefine audiophile standards, the Titan S2 shines in its overall package. Premium build quality, a top-notch cable with the Q-Lock modular plug system, and a generous selection of eartips elevate it above the competition. If you’re seeking exceptional value without breaking the bank, the Titan S2 is one IEM you should consider.

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