TANGZU - 4U

My personal rankings for stuff I've heard. I'm a neutral/neutral bright guy. (My post on reddit goes somewhat in depth on all of these, sadly I'm not very technical in my language) Kotori Audio Zephyr (Duh) Truthear Hexa Tangzu Yu Xuan Ji (might be too bright for some but easily looks the prettiest by a *BIG* margin) Truthear Gate (My current set, would upgrade to one of the options in the list in a few months) Tanchjim 4u (Bang for buck) Truthear x Crinacle blue 2 (tachjim 4u has better value) Aful Magicone (very similar to hexa) Moondrop May (A default starter set for almost everyone regardless of taste.) Letshouer s08 (not my taste, great value, premium for the price) Letshouer dz4 (not my taste, great value) Moondrop Chu 2 (My previous set that are lying around somewhere) Tangzu x hbb Xuan Nv (just because of the fit) Kotori Audio Vampire I'll check out your YouTube!

I’d look into getting the 7hz Divine or Tanchjim 4u instead. Sennheiser’s IEM lineup is unfortunately outclassed by many other IEMs these days. Both Divine and 4u have a very balanced signature similar to IE200 but with better tuned treble.

Most IEMs are about the same in terms of durability, aka they won’t survive the rain or impact against hard surfaces if you do that enough times. Both IEMs are made of metal however which should have a better chance of surviving a beating over resin or plastic IEMs for example. Tanchjim and 7hz both have good reputations in regards to QC. Tanchjim 4U also has a tuning nozzle in it which allows you to change the sound signature of it. Mainly it changes how much of a bass shelf there is.

My latest one…hard to say, I bought many the last weeks. ;-) but my current favourites are : Punch Audio Martilo, Xenns Tea Pro, Juzear Defiant. As well love to use some cheaper ones which are more lightweight and fit very easily in my ears like the Tanchjim 4U, Crinacle Zero 2.

Cool impressions about the Monarch MKIV. Nice pics, too. I get the size factor on IEMs. I feel that is so often only a small side in reviews but on the other hand how to you exactly want to takle it when reviewing? I think the side wing is always worth mentioning, semi custom fit and overall size of the IEM. Otherwise ears are so different, best to always try them before buying if that is possible at all (unfortunately where I live there are almost no options). Ear tips is the other variable which can help actually a lot with the IEM fit and of course with the sound. Tip rolling has helped me a lot here and I tried now six or seven different types and brands to get the best comfort and seal. But I definitely own some IEMs which just dont fit exactly how they are supposed to fit. Interestingly how you described it, some IEMs like the Monarchs might be chunkier but still fit better and some smaller ones. I have kinda middle sized average ears and I like to wear the Dunu Falcon Ultra, Juzear Defiant, the different Tanchjim variations like Bunny, 4U etc and they fit easily and are super comfortable. My more expensive Martilo and Xenns Tea Pro are bigger but I found good tips to make them as comfortable as possible (velvet tips). As for endgame IEMs, I will have one as well at some point. The Monarch MKIV are a candidate but I am curious about the BGVP Solom (similar price) which is supposed to be a bit smaller and I like the shell overall design better. As well the Monarch's accessories suck for that price point. The case is a bad joke. Anyways, thanks for your impressions, sharing them here and congrats to the Monarch MKIV, enjoy :-)

If you want smooth treble , the Kefine Delci, around 64 USD, is a good choice imo. It has as well some good bass and the sound signature is overall relaxed . Explorer and Defiant are good sets but at least to my ears they have a bit spicy treble . The Defiant more than the Explorer. I would take the Explorer over the Defiant . Another good set is the Tanchjim 4U, around 60 usd . The built quality on these is very good and they have four switches to adjust the sound .

First, a big shoutout to **TANCHJIM** for providing me with this set, allowing me to deliver an honest and sincere review. The **TANCHJIM 4U**, launched in 2024, received high praise from both reviewers and the audio community. Now, with some time on the market, does it still stand as a competitive option? Well, let's find out. Following the success of the **Bunny, Oxygen,** and **Origin**, the **TANCHJIM 4U** is another excellent addition to the lineup. It features a **10mm LCP-coated dynamic driver** powered by the impressive and well-known **DMT4 technology**. Priced at an **MSRP of $70 USD** (often lower during sales), the **4U** showcases how a personalized approach resonates with different consumers. It offers a compelling proposition that withstands the test of time in today's highly competitive market. You can find it at the **HiFiGO store** [here](https://hifigo.com/products/tanchjim-4u), as well as at other smaller online retailers. **TL; DR:** One of the best IEMs in the **sub-$70 category**. With a neutral yet natural tonality, technical proficiency, customization options, and an engaging musical character, the **TANCHJIM 4U** delivers a well-rounded listening experience. It offers a dynamic sound that suits various musical tastes, complemented by excellent treble extension and an overall tuning that makes it a true all-rounder. The **TANCHJIM 4U** delivers a neutral yet natural sound profile, complemented by a satisfying bass boost and extended depth (particularly in the Atmosphere and POP settings). It boasts impressive technical capabilities, a well-extended high-frequency response, and a build quality that carries the unmistakable **TANCHJIM** seal of excellence. As a highly praised contender in today's market, the **4U** offers remarkable performance at an affordable price, effortlessly surpassing expectations for its price range. **Technical specifications:** \- **Product type:** In-ear monitors (IEM) **Driver type:** Dynamic **Driver diaphragm materials** Polyurethane (PU) +Liquid crystal polymers (PCL) **Earphone connectors**: 0.78mm 2 pins **Cable connector:** Jack 3.5mm **Frequency response:** 8Hz-48 kHz **Impedance:** 32Ω±5% **Total harmonic distortion (THD)**: <0.05% [u/1kHz](https://www.reddit.com/user/1kHz/) 94dB **Sensitivity:** 122dB / Vrms **Cable conductors**: Silver-plated copper Litz wire **Cable shielding:** Silver-plated platinum **What comes in its package?** · 1x Pair of **TANCHJIM 4U** earphones · 1x Storage pouch · 1x 0.78mm 2 pins to Jack 3.5mm cable · 6x Pairs of eartips (SML sizes, 3 pairs of wide bore eartips, 3 pairs of narrow bore eartips) · Manual and warranty card. · Quick Guide. · Tuning screwdriver. The cable has an attractive and well-built design, complementing the shells nicely. However, I find it slightly thin for my taste. While it is perfectly usable as is, those who prefer a different option can easily replace it. The shells are crafted from metal (aluminum), offering a solid construction. They have a bit of weight to them but remain very comfortable to wear. The faceplate features a striking, glossy finish with the **TANCHJIM** and **4U** logos in white (a definite magnet for fingerprints and micro-scratches). Fortunately, the housing is smooth and free of rough edges, reinforcing the sense of quality expected at this **$70** price point. Comfort is excellent for extended listening sessions, and the **6mm diameter nozzle** fits well in my ears. However, given its medium-to-large sizing compared to other sets, I recommend checking whether it suits your fit preferences. **How the TANCHJIM 4U sounds:** The **TANCHJIM 4U**, equipped with a **10 mm LCP dynamic driver**, delivers a clean, crisp, and natural sound with a well-defined sub-bass boost and a prominent mid-bass presence. Its impressive extension into both the lower and higher frequencies, combined with outstanding technical capabilities, positions it as a standout in its price segment, punching well above its weight. With an engaging tonality and dynamic sound profile, the **4U** offers a neutral yet immersive listening experience, rich in macro and micro-details. As an all-rounder, it delivers a musical and fun presentation that captivates the listener. The soundstage is particularly striking, with remarkable resolution and imaging, allowing for precise instrument separation and layering within the mix. For its price, this is an undeniable contender. In this review, I exclusively used the stock **"Atmosphere"** setting, as I appreciate the sub-bass extension and presence it provides. Regarding the other settings (POP, Natural, and Monitoring), the tuning screw allows for bass adjustment to suit your preferences. However, based on my tastes, only the stock Atmosphere and POP setting aligns with them, as the other two configurations feel too bass-light for me. **BASS:** The **TANCHJIM 4U** features a well-balanced bass shelf, delivering satisfying sub-bass thump and mid-bass impact in the Atmosphere setting. The bass gradually rolls off across the POP, Natural, and Monitoring settings, with the sub-bass reducing first, followed by the mid-bass. The bass response is clean, fast, resolving, and well-extended into the lower frequencies. While not at basshead levels, it offers enough depth and presence to be thoroughly enjoyable. There is a slight bleed into the lower mids, but it remains controlled, avoiding muddiness in male vocals. The bass feels natural and adds a pleasing character to the overall sound. In tracks like ***Doomed*** by **Bring Me the Horizon**, the weight of bass drops, the bass guitar, and drum kicks create a captivating and immersive experience. Meanwhile, ***The Tales of War*** by **Orbit Culture** showcases how the **TANCHJIM** **4U**’s bass delivery effortlessly induces unconscious headbanging, pulling you deeper into the music. **MIDS:** As mentioned earlier, the mid-bass slightly bleeds into the lower mids, yet male vocals and bass kicks remain clear, neither muddy nor veiled. There is a subtle dip in the lower mids before the pinna gain giving a forward presentation and plenty of transparency and presence, leading smoothly into the pinna gain with a clean, well-resolved, and non-sibilant character. A slight 5 kHz peak enhances the presence of plates and cymbals, adding a natural sense of impact. Female vocals are also forward, striking a balance between presence and smoothness, neither sibilant nor fatiguing. Additionally, a well-placed 6 kHz dip allows for comfortable volume adjustments, something I find myself doing quite often. In ***Skylight*** by **Atoma**, the cymbals and plates are rendered with impressive quality and absolute sibilance-free clarity. Meanwhile, ***The Siren of the Woods*** by **Therion** showcases how the **TANCHJIM** **4U** presents female vocals and the instruments, crafting an engaging and immersive listening experience. **TREBLE:** This frequency range extends remarkably well without introducing any sibilance. It remains clean, crisp, and sharp, yet avoids harshness, handling treble with impressive control (and I say this as someone with mild treble tolerance). In ***No Llora*** by **El Cuarteto de Nos**, the **4U** faithfully reproduces the intricate details of the drums and guitars, capturing their tonal nuances and production colorations. Meanwhile, in ***Ella Usó mi Cabeza como un Revólver (MTV Unplugged)*** by **Soda Stereo**, the immersion is undeniable, the 4U transports you into the historical essence of the performance, delivering a deeply engaging sound experience. **TECHNICALITIES:** The upper treble extends beautifully, delivering an airy and spacious presentation. The soundstage feels remarkably wide, offering a rich sense of space and depth. In ***Mombasa*** by **Deafheaven**, the **4U** creates a deeply immersive experience, allowing you to appreciate the journey rather than just the destination. The macro and microdetails are presented with impressive clarity, bringing out the nuances of the track. The **TANCHJIM 4U** showcases a highly resolving sound, with above-average separation for its price point. In complex and immersive compositions like ***Echoes Part 1 (Live at Pompeii – MCMLXXII – 2025 Mix)*** by **Pink Floyd**, the iconic concert mix is rendered with stunning precision, every piece and instrument shines through, making for an incredibly enjoyable listening experience. **Closing thoughts and conclusions:** The **TANCHJIM 4U** stands out as a remarkable contender in the **sub-$70 segment**, offering an immersive and natural sound signature with impressive bass and treble extension. Its well-balanced blend of technical precision, musicality, and engagement makes it a versatile choice for both seasoned audiophiles and newcomers seeking a high-quality listening experience at an accessible price point. The inclusion of a **tuning screw for bass adjustment** is a thoughtful addition, allowing users to tailor the sound to their personal preferences. As one of the best all-rounders in its price range, the **TANCHJIM 4U** often surpasses more expensive alternatives, proving to be a compelling option in a highly competitive market. The **TANCHJIM 4U**, with its 122dB of sensitivity, is exceptionally easy to drive, even from a phone. However, as a dynamic driver IEM, it benefits from even a simple dongle DAC and source variation. When paired with a neutral, uncolored source like the ESS Sabre chips, it delivers a sound that is both technically refined and warm, yet so musical, scaling remarkably well with increased power. The stock eartips are more than sufficient for an enjoyable listening experience straight out of the box. Personally, I opted for the included **wide bore eartips** to fully appreciate the spaciousness and airiness provided by its excellent treble extension. For those looking to experiment with aftermarket options, I recommend considering the Penon Liqueur Orange, Tangzu Tang Sancai Balanced, and TRN T eartips for further sonic refinement. **Would I recommend it? Absolutely—YES!** The **TANCHJIM 4U** is undeniably one of the best options in its price segment and stands among my favorites under **$70**. It delivers a sound quality typically found in more expensive sets, embodying the signature **TANCHJIM house sound** and its seal of excellence. This IEM has earned a place in my collection, and I have no plans to part with it anytime soon. A big thank you to **TANCHJIM** for providing me with this IEM, allowing me to test it, enjoy it, and gather the insights needed to confidently recommend it. This is a product that not only lives up to the hype but exceeds it, deserving even greater recognition. And of course, thank you, dear reader, for checking out my review. **Happy listening!** 😊

Hi bro, thanks a lot for reading ☺️. Yeah, the 4U is the "natural" upgrade to the Bunny, is impressive how Tanchjim put that DMT4 driver to its limits ❤️‍🔥. The next one is also from Tanchjim, can they bring something even better?, mwahaha let's find out! 😎

Too bad the shiny finish on the 4u doesn’t last

I got 4U too. Nice IEM, the fit is perfect since its a little smaller than the CHU OG from Moondrop. For me it the most confortable IEM i ever used.

I have Tanchjim 4u so i didn't buy anything below its price point from Tanchjim and went with purchasing Fission (got it for 105 usd) which sound better thn 4u which compliment the driver upgrade. I tried final eartips with moondrop DSP type C cable in 4u which almost giving me same vibe as fission but again Fission overcome as winner for its engaging and slight upgrade with layering & separation. i found golden nozzle with pop mode using type C as my go to setting giving me good musical and yet analytical sound. Almost all tanchjim iems have same in house sound so i will go for another brand after this 2 purchase.

Hexa or Pure (warmer ver.) if your ears can take it. Tanchjim 4u or fission is another candidate, make sure to set the profile to monitor mode.

Tanzhim bunny, Tang Zhu waner, moon drop chu 2,if you love bass truth gear gate,dont think about anything else if you are starting over. avoid castors they are heavy on ears not comfortable on long hrs.I would say moon drop, tanzhim or tanzghu way to go.Dont forget to buy a DAC go for audiocular d07 or audiocular spark don't skip DAC.