About SeeAudio & Introduction
Seeaudio is a brand that make high-quality IEMs with good tuning and nice design. They not very old in market, but they already make some IEMs that people love a lot. They always focus on both sound and looks, so their IEMs not only sound great but also look premium. Some of their well-known models are Bravery, Yume, and Neo, and these got good feedback from audiophiles.
Now, let’s talk about Yume 4—this is the latest one in Yume series. Yume series always try to keep a balanced and clean sound, and this one also follow that idea. But this time, there are many upgrades from older Yume models. In this review, I will share my honest opinion—both good and bad, so you can understand if this IEM is right for you or not. If you planning to buy, I hope this review help you decide better!
Disclaimer
See Audio send this unit to Sonic Mantra team for review, but that don’t affect my opinion. In this review, I share my honest thoughts and try to give a full idea about both good and bad sides of this IEM. I don’t do sugarcoating, so what I hear is what I write.
If you thinking to buy this, you can check out Hifigo.. For Bangladesh buyers who don’t have dual-currency cards, Geek Mart is a good option to order from. Always do your own research before buying, cause what works for me might not work same for you.
Build quality and Design
See Audio Yume 4 is made with resin. See Audio says they use skin-friendly medical-grade resin, so people with sensitive skin should not have problem. Even though it is made of resin, when hold in hand, it feel like a solid block. Build quality is very good in my opinion, and in my regular use, I didn’t face any problem. The shell also feels strong enough, so even if use roughly, I don’t think it will break easily.
The nozzle is made of metal. I have used this IEM for a long time, and the nozzle did not oxidize, and I don’t think it will. In Bangladesh weather, many IEM nozzles oxidize fast because of humidity, but I don’t see any such sign here. The joint between the metal nozzle and the shell is strong. It does not feel like it will become loose or fall off. In the nozzle, there is a grip for ear tips, so most ear tips fit securely and do not fall off easily.
For connectivity, this IEM use recessed 2-pin connector with contour design. Because of this, the connector is more protected from accidental damage. But this means regular flat 2-pin cables will not fit. The 2-pin connection is tight and secure, so I don’t think it will cause problem even after long time of use.
The shell is made of transparent resin, so you can clearly see the drivers and crossover inside. Personally, I like transparent design a lot. The left side is pink, and the right side is cyan. The drivers look like candy, and the design is very eye-catching. See Audio really knows how to make beautiful IEMs. The shell has a silver mirror finish logo on top, and inside, there are colorful glitter effects. This makes the IEM look stunning when light hits it.
See Audio says the Yume 4 design is inspired by the night sky and dreams. The gradient finish and aurora effects create a beautiful play of light and shadow. The shell is made with advanced rigid infusion technology, which gives it a proper crystal-clear look. No doubt, this is one of the best-looking IEMs See Audio has made.
Fit and comfort
I have no complain about the fit of Yume 4. It fit very good in my ear, and the shell design is made in such a way that it sit in ear like a semi-custom IEM. The shell size is little smaller than medium, so I don’t think anyone will have problem with the fit. Also, the shell design is smooth, and it does not create any pressure inside the ear. Because of that, even if wear for long time, no pain or discomfort.
I have used it continuously for more than 3 to 4 hours, and I did not feel any issue. The shell is very lightweight, and the cable is also lightweight. Because of this, even if walking or using outside, I did not face any problem. But since there is no proper ventilation, sometimes it create pressure inside the ear. Some people might feel uncomfortable because of this. In my case, with some tips, it created a suction-like effect, which made it hold very tightly inside ear. Because of this, when removing, it felt a little uncomfortable. But if use perfect tips, this problem can be reduced a lot.
The nozzle goes quite deep inside the ear, but I have no complain about it. It was comfortable enough for me.
Cable and Tips
The stock cable that come with this IEM is quite good in quality, but it feel very thin and look little cheap. But sound wise, no issue at all—I got perfect sound with it. Also, because the cable is lightweight, comfort level go to another level. But one thing I really wish, if this cable had interchangeable termination, that would be great. Sadly, it don’t have that. Another sad part is, right now this IEM only come in 3.5mm version.
However, this cable work well if you connect it to receiver or transmitter for stage or outdoor monitoring. It’s simple, lightweight, and don’t cause any discomfort when moving around.
Now about tips—these stock tips look exactly like KBEAR 07 tips. Honestly, I don’t feel any difference between them. But as stock tips, they are just okay, nothing special. For my ears, these tips cause a bit pain, so I didn’t use them. If you have good after-market tips, better to use those for best output. For me, some tips that boost bass response work well, like DUNU Candy, Final Clear, and Azla Max.
Testing Source
- Questyle qp2r
- Cowon Plenue R2
- Astell & kern SP1000M
- Cayin N3 Ultra
- Ibasso DX180
- Hiby R3 ii
- Ibasso DC Elite
- Cayin ru7
- Questyle M15
- ONIX Alpha Xl 1
- KAEI-TAP2 ( AMP )
- Shanling H5
The sound Performance
Bass Response
Yume 4 is a full-BA IEM, and its bass follows the typical BA characteristics—controlled, tight, and precise but lacking the full-bodied warmth and natural decay of dynamic driver bass. The bass here is more about speed and technicality rather than deep impact
mid-bass
The mid-bass is where this IEM shines the most. It delivers good punch, fast response, and a snappy attack, but I expected a bit more weight behind the notes. Listening to IGYEIH by Linkin Park, the bass guitar and kick drum hit with good tightness, but they don’t have that extra body that gives a sense of fullness. The bass line feels well-separated, and the drum fills come through fast and clean, but a little more impact would have made it even better.
Lux Æterna by Metallica further confirms this—it shows the speed of the bass very well. The kick drums are tight and controlled, and the bass guitar notes don’t bleed, but the raw power Metallica’s music demands could use a little more weight in the low-end.
Isub-bass l
When it comes to sub-bass, the Yume 4 falls behind. Listening to Gabriel by Podval Capella, the deep electronic bass notes don’t extend fully, and the rumble feels somewhat muted. The note definition is there, but the weight and physicality are lacking. In Angel by Massive Attack, the sub-bass line, which should sound deep and atmospheric, feels a bit restrained. It doesn’t dig as deep as needed, making the track lose some of its immersive nature.
Pairing this IEM with a warm and bass-heavy source improves things. Devices with XBass or bass boost modes help bring out more weight in the lower end. Still, if someone prefers deep, physical sub-bass presence, this may not be the best choice. However, for those who enjoy clean, fast, and tight bass with good texture, this tuning will be very enjoyable.
Mid-Range
Even though the bass warmth is low, the mid-range still have enough warmth and body to make vocals and instruments sound natural. It never feel too thin or dry, which is a good thing.
Male vocals sound full and clear. In Can’t Help Falling in Love by Elvis Presley, his deep voice come through with good warmth, but I feel like little more weight in lower mid-range would have make it more rich. The double bass in background sound clean, but not very thick, so the mix stay open and not muddy. I’ve Got the World on a String by Michael Bublé show mid-range instrument well. The trumpets and trombones sound smooth but still have crisp details, and Bublé’s voice stay right in middle without sounding too forward or too soft. His vocal texture is clear, no sharp peaks, no harshness.
Female vocals are best part of mid-range. They have energy, liveliness, and clarity. In Day Breaks by Norah Jones, her voice float beautifully over the piano and double bass. The piano sound soft, little warm, and don’t overpower her voice. Even when more instruments come in, her voice stay clear. In Never Enough by Kelly Clarkson, her high notes sound strong but don’t feel sharp. No sibilance, no unnatural peaks. The string section behind her sound smooth, and the piano stay detailed without being too bright.
Mid-range instruments sound clean and well-separated. Pianos, brass instruments, strings, all have natural tone. No muddiness, no over-sharpness. Layering is done well, so even in complex songs, different sounds don’t mix together. But if someone like warmer, thicker mid-range, this might feel little bit lean. Using warm DAC or analogue-sounding source help add more body to male vocals and low-mids, making everything feel fuller and more engaging.
Treble
Now moving to treble, Yume 4 have a very well-controlled and smooth treble response. It is airy, detailed, and never feel harsh or sharp. Treble have enough energy to keep the sound open, but not too much to make it fatiguing.
Listening to Mario Takes A Walk by Jesse Cook, the acoustic guitar strings sound very clean and lively. The plucking details come through well, and there is a good sense of space. Every note have a crisp attack but don’t feel too sharp. The cymbals and hi-hats in background sound natural, with soft shimmer, not over-bright. The reverb in recording is also noticeable, making the whole track feel open and spacious.
In Clair de Lune by Debussy, the piano notes sound smooth and delicate. High notes don’t feel thin or piercing, and they carry a natural decay. The treble here helps to bring out the emotion in the piece, making every note feel clear but not too sharp. There is also good layering, as the quieter background notes don’t get lost behind the main melody.
Treble have good micro-details, which help with overall clarity. The small textures in string instruments and cymbals can be heard easily, and the airiness keeps the soundstage feeling open. It don’t push too hard, so it never sound harsh, even in bright recordings. If someone like very bright treble with extra sharpness, this might feel little too safe. But for smooth, detailed, and refined treble, this tuning work very well.
Technical Performance
|Yume 4 have moderate soundstage, not too big or too wide, but well-balanced. It keeps everything in a natural space, neither too intimate nor too distant. Imaging is strong and precise, making it easy to locate different elements in a mix. Separation is also well done, ensuring that instruments don’t blend into each other. Speed is solid, keeping up with fast passages without smearing details.
Listening to No More Cloudy Days by Eagles, the vocals, guitars, and drums all have their own space, making it easy to pick out different layers in the mix. The electric guitar strums sound clear but don’t feel overly sharp. Backing vocals stay well-separated from the main vocal, and small details like hi-hat hits and reverb trails are noticeable. The soundstage isn’t huge, but it feels natural and open enough to avoid congestion.
In Bubbles by Yosi Horikawa, imaging and dynamics stand out. The way the small water droplet sounds move across the stereo field feels realistic and precise. Each sound is placed with good accuracy, making it easy to track movement. The low-end rumble stays controlled, and the sudden volume shifts in the track feel natural, but dynamics could be little bit stronger to give more contrast between soft and loud moments.
Transient response is smooth and fast, handling quick changes well. In DIGITAL WORLD ORDER by Andromida, the electronic drum hits and synth stabs sound sharp but controlled, never too harsh. The track’s fast-paced nature shows how well Yume 4 keeps up with sudden shifts in intensity. However, dynamics could use more punch, as some loud sections don’t hit as hard as expected.
Overall, Yume 4 delivers strong technical performance, especially in imaging, separation, and speed. If someone prefers a larger, more spacious soundstage or stronger dynamics, this might feel a little controlled, but for clean, precise, and well-balanced technicalities, it performs very well.
Best Use Case in My Opinion
Because of its comfortable fit, lightweight shell, and lightweight cable, I think this IEM is a great choice for outdoor use, stage performance, and long listening. The design make it easy to wear for hours, and the fit is secure enough that it won’t fall off even when moving.
If you pair it with good tips, the noise isolation gets better, so outside noise don’t disturb much. This makes it really good for singers, musicians, and even people who travel a lot. Since sound stay clear and detailed, vocalist and acoustic artist will find it useful for practice and performance.
For female artist, I think this is even better option. The sleek design and color look stylish, and the shell is smooth and comfortable. The tuning works well for vocal-focused music, keeping vocals natural and easy to hear.
This also good for content creator, streamer, and podcaster who need clear and balanced sound without too much bass. Since it’s light and comfortable, it can be used for long recording or editing session without making ear pain.
Source compatibility
The SeeAudio Yume4 not need much power, so almost any 3.5mm dongle can drive it easily. No need for high-end amp or DAC to get good experience. But when I try warm or bass+ source, the sound feel more full, bass have better weight, and overall more musical. DAC/amps with bass boost mode give more body to bass, so if you like fuller low-end, this kind of source will be better choice.
On the other side, bright or very analytical sources not sound so good with Yume4. The sound still detailed and clear, but I feel less musicality and less warmth. Some digital-sounding sources make the music feel thin, so if you like natural and engaging sound, better avoid too bright source.
One interesting pairing I try was with Questyle QP2R. Even though QP2R not warm source, Yume4 sound really amazing with it. The clarity, separation, and depth improve a lot, making the music feel more high-end. So, if you have a good DAP like this, you may get even better experience.
For warm sound, Cayin RU7 ( DSD 64 ) cayin n3 ultra ( tube) , xduoo xd05 basic, ifi hip dac v2 (with Xbass on), or dongles with bass boost work very well. If you have only a simple 3.5mm dongle, no problem—it still sound good and get enough power.
So, if you have different sources, you can try and see which one match your taste the best.
Conclusion
SeeAudio Yume 4 is a pretty nice choice for them who like clean and balanced sound. Treble sound smooth and airy, mids feel clear and natural. Bass? It’s there, but not too much—it stay in control, tight and never boom too hard. Vocals, specially female ones, sound alive and well-detailed. Instruments also have good separation, which make it nice for acoustic music, jazz, and vocals. Imaging also quite good, so yeah, even good for gaming or casual stage monitoring.
But if you love heavy bass or super bright treble, maybe not for you. Bass don’t go crazy, treble is clear but not super sparkly or sharp. It’s more balanced tuning, not something extreme. Overall, Yume 4 is solid for them who enjoy clean, detailed and immersive sound. But if you want big bass boom or treble that shine like diamond, maybe check other options
