WATCH FULL REVIEW HERE: 

PRICE: $149

PROS: 

• Well-done Harman/U-Shaped tuning
• Very refined sounding set overall
• Clean and neutral midrange
• Deep reaching, rumbly but unobtrusive bass
• Sparkly, detailed, well-extended but non-fatiguing treble
• Superb technical ability
• Good fitting

CONS: 

• Slight metallic timbre on brighter tracks
• Bass is a little slow
• Cheap-feeling build quality
• Barebones inclusions

WHO THIS UNIT IS FOR

• People who want a very refined sounding set
• People who want a fun but clean sounding set
• People who like really deep subbass but clean midrange
• People who want a very technically capable set
• People who want to try a good budget quadbrid set

WHO THIS UNIT IS FOR

• People who want a more tactile low end
• People who want more body in the midrange
• People who want a Simgot-like bright treble
• People who want a premium feeling build
• People who want a bountiful accessory inclusions 

RECOMMENDED GENRES

• Most genres work with the Supermix 4

SHORT REVIEW

Simgot takes a back seat from their usual bright and sparkly tuning for a more mature, more neutral and more versatile sounding set. Bringing the most subbass out of any Simgot IEM, the Supermix 4 marks itself as a first not only when it comes to drivers but also tuning. But Simgot does not sacrifice this new tech for show as the level of refinement and technical ability of this set is not like anything I’ve heard under $200. RECOMMENDED!

FULL REVIEW

Why do you buy from the brands that you buy from? Is it the hype and status of owning that kind of product? Maybe it’s because of your favorite influencer promoting the product and wanting to feel like you’re a little closer with them knowing you’re using the same product. Me? I buy from companies I know I can trust. Companies that have proven to release products that are consistent with their identity and that I’ll know won’t fail me.

It’s the same thing in audio, but the difference lies with the niche that your follow. You could be a Harman stan or maybe enjoy really weird but beautiful headphones. But one brand has proven themselves as the choice if you want to have the most refined sounding in-ears in the portable HiFi market. Let’s see if they can keep the streak of consistency or falter with their first quadbrid set

DISCLAIMER:

The Simgot SuperMix 4 was sent over by Simgot in exchange for my honest thoughts. I was not paid or compensated in any way to say anything about the product and all my thoughts and opinions are mine. 

SMOOTH OPERATORS!

Simgot is a brand that everyone should know by now. From their meteoric rise since the EA500 to their consistent releases following such, Simgot has stayed in people’s minds, hearts and wallets more than other companies do. This could be attributed to the very consistent level of sound quality that they’ve been offering the last few years or their insane value proposition for every release. Regardless, Simgot isn’t done cooking up crazy things for us. 

Meet the Simgot Supermix 4, a 4-driver quadbrid in-ear monitor priced at $149 which falls perfectly under Simgot’s crazy value proposition for products. This is their first quadbrid IEM and aims to essentially beat the competition in numbers. But is the Supermix 4 just all numbers and no brawn? Or did Simgot make something that breaks the market once again. Let’s start with the unboxing/

UNBOXING

If there is one thing that I know Simgot really isn’t the most spectacular at, it’s unboxing. Don’t get me wrong, the boxes are often beautiful. However, the inclusions usually leave a lot to be desired which is a shame but a relief as you know they put all their money into what actually matters.

Nonetheless, the box looks kinda ugly with the green shade with the Supermix 4’s exploded view up front. Not really the most creative nor the most good looking box but that’s a personal gripe as first impressions matter to me a lot. 

Opening the box, you’re met with the usual Simgot accessory presentation which include the following:

• Supermix 4 IEMs
• Cable
• Eartips (3x)
• Paperwork

Oh Simgot, bless your hearts for providing the bare minimum but I really hope you guys try to step it up a little bit. The carrying case is arguably a worse version of the ones that came with the EA500/LM and EM6L which is insane considering the only change is the rather rough gold zipper and nothing else. 

The eartips are rather basic but effective as they’re 07 style and fit my ear fine. I know a lot of people disagree with this, though. 

BUILD & FIT

The Supermix 4 has a quadbrid internal set-up with a single DD, single BA, single microplanar and single piezo driver all bunched in a surprisingly compact but cheap feeling shell. 

I have to give Simgot some credit for essentially doing what the EM6L tried to achieve by jamming a bunch of drivers into a small resin shell without compromising the 2-pin integrity and using QDC. I hate QDC so much and I’m so glad they did not go with the QDC with the Supermix 4. 

I also have to give them credit for essentially making the best fitting Simgot IEM by far. The inner shell being slightly contoured and winged made it a more snug fit than every single Simgot IEM I’ve tried so far. This also aided in having a considerably better seal and stability which is always a plus. Speaking of pluses, there’s also no driver flex or air pressure build up. Yay!

But let’s talk about the elephant in the room. Yes, this is a resin shell and yes, it feels cheap. It’s very similar to the build of the EM6L but opting for the 2-pin instead of QDC. Compared to Simgot’s other IEMs, this feels like a toy and would be mistaken for a $20 IEM in line with their legendary EW100P. But I understand why they did this and I respect them for once again investing more in the internals than the externals. It doesn’t feel flimsy or poorly constructed and just feels cheap on the hand. 

Simgot does make up for it by providing one of the best stock cables that I’ve ever seen in an IEM in this price range. It’s a very aesthetically pleasing and well-built cable that fits the Simgot aesthetic perfectly. The interface feels very sturdy and premium and the material of the cable itself does not irritate my sensitive skin. I wish this had interchangeable terminations, but it’s a damn good cable as is. 

SOUND

Sound Signature

The Simgot Supermix 4 has a Harman u-shaped sound signature with extra emphasis in the low end, flat midrange and a well extended, sparkly but usually fatigue free treble. What I was really impressed with is how coherent the entire thing sounds.

 For having 4 drivers, I only occasionally found the Supermix 4 to sound a little metallic which is something I’ve already expected coming into the Supermix 4. But somehow, Simgot puts some magic into the Supermix 4 and mixed a harmonious sounding set. You don’t hear the transition between each driver (minus the bass in a way) and every driver sound like they’re working with each other rather than against. 

The level of refinement that each driver provided in the mix is crazy considering this is Simgot’s first quadbrid, but that just goes to show how consistent Simgot’s releases are.

Drivability

Despite being a quadbrid, the Supermix 4 isn’t very hard to driver. This is due to the 7.2ohms impedance and 120db sensitivity that allows it to be so easy to drive, but not the easier in my experience. The low impedance and high sensitivity doesn’t really translate 1:1 in my listening experience as I found it to need to be cranked a little higher than something like the EW200. However, the Supermix 4 is one of the most source sensitive IEMs that I’ve tried so far. Listening to this on lower powered or cheaper source often brings out the sharpness and metallicness of the treble while smoothing the low end and losing all texture. I highly recommend using at least a decent dongle DAC to drive the Supermix 4 as it really wants a clean source to sound its best

Volume

A surprise to me was that the Supermix 4 excelled in mid to high volume listening. Never in my years of being a Simpgot have I ever had an IEM from their company that allowed me to crank the volume up higher than mid and yet the Supermix 4 marks as the first of its kind. The bass is extra thick and deep and is borderline basshead on higher volumes, but the upper frequencies are also emphasized in exchange. The beauty of the Supermix 4 is that the treble never sounds harsh unless thrown into a very poorly mixed or deliberated bright track which is not common from my listening experience. That’s the Simgot magic for you!

Bass

When I first heard the bass of the Supermix 4, I had 2 main reactions. One was how crazy deep it sounded with the rumble being present when it needs to and giving the perfect amount of sub depth in songs that needed it. It was baffling, especially with how most Simgot sets are rather shy in the bass region barring the EM6L. But listening to the bass more, I realized that there was one crucial element that was missing in the Supermix 4; midbass texture. The one quality I look for in every single in-ear or headphones I try is unfortunately missing. This is potentially due to its Harman nature, but the midbass sounds clean but lacking that oomph and punch that I usually look for in the midbass. Granted, this also makes the bass of the Supermix 4 surprisingly clean, but the bass on some tracks do have the tendency to mush up the details in the low end so I wouldn’t necessarily call it tight. 

The depth is perfectly presented in the song Whiskey in My Coffee by Ric Wilson et.al. Each deep reaching bass line sounds so thick and rich that I felt like I had subwoofers in my ears. It never sounds muddy or overly boomy, however, and still keeps a clean lower midrange to keep the mids sounding open. However, the same can also be said for the track Get Lucky by Daft Punk with the iconic bassline at the start lacking the tactility of each note and loses out on that nuance that I love to hear when listening to that track. It’s not overly smoothened or completely absent, but definitely much less than I want. 

Mids

This flows rather predictably in the midrange with a very open, clean and Harman sounding midrange. However, I would like to highlight the fact that compared to other Harman sets I’ve tried, the Supermix 4’s lower mids don’t sound overly thin or dry. This was a big surprise to me, but a welcome one at that. It’s still on the leaner and lighter side, but it keeps a decent amount of body to not make lower octave instruments and vocals sound anemic.Note definition is good, but texture and nuance could be improved. Upper mids fair much better and make the Supermix 4 a rather competitive upper midrange centric set. It perfectly balances sounding detailed and nuanced without an odd timbre or shout. I honestly have very little to complain about in the upper midrange of the Supermix 4 besides the fact that some people might find it a little forward. But honestly, this is a very well-done upper midrange that straddles the line of being too forward and too recessed. 

The perfect example of this would be the usual culprits of Laufey and Samara Joy. As they’re both contraltos, they excel when playing through leaner sounding in-ears as it cuts down the warmth in their vocals. Obviously nothing too dry, but something like the Supermix 4 perfectly presents the vocal in a natural yet still distinct manner. Male vocals fair thinner, but still sound quite decent. Something like Get Down by Flu sounds perfectly fine with the Supermix 4 despite being on the thinner side and I would say gave the vocals the much needed brilliance from the upper mids. I do prefer a little bit more body, though

Treble

Usually the highlight of Simgot sets, the Supermix 4 presents the treble in a generous yet perfectly complimentary manner to the rest of the frequency range. While it may not be your usual bright and sharp Simgot treble, it’s a generous amount that most people would probably be fine with. One of the best things about it, along with other Simgot sets, is the level of refinement in the treble. It never once sounded sibilant or edgy but still maintained the brilliance and airiness that you might look for in a Simgot set. The treble extension of the Supermix 4 is, well, super as it’s very airy without sounding forced. Detail retrieval is also fantastic due to the smoothness providing a consistent level of clarity without and sudden spikes or dips. However, it should be noted that there is definitely a level of metallic timbre that is present on certain, brighter tracks that could be attributed to the rather complex hybrid network of drivers (or just the tuning leaning towards this trend)

A track like the Hell Freezes Over version of Hotel California is a perfect example of providing good detail without harshness or unevenness. The percussive instruments sound so crisp and sharp but never piercing. Flu’s Get Down was the track I kind of started hearing the metallic nature of the treble, but still maintains that smooth, refined but well-detailed treble presentation that is unlike anything I’ve seen in a hybrid in this price range. Obviously, throwing this into a brighter track like Can’t Hide Love by Earth, Wind & Fire will bring out the sharpness and dryness of the mix, but that’s mostly due to the lack of lower mids to contrast the sharper upper frequencies.

Technicalities

A highlight of the Supermix 4 that is in-line with other Simgot sets is the superb technical ability. This is the kind of refinement and resolving ability that you could really only find in $250+ IEMs which makes sense when you start thinking about the Supermix 4’s driver configuration. Throw in as much drivers, tune them to perfection and bring out the most in music. Separation and layering are phenomenal for the price and allows you to pick apart complex and very busy compositions like August Burns Red or even Fall Out Boy. The only problem is both these artists usually crank the treble pretty high and the Supermix 4 will emphasize that. Imaging, headstage and stage depth are also good as I found both stage width as well as the expansiveness of the stage depth to be both very immersive. The imaging ability isn’t the craziest, but it tops of the near perfect technical detailing. Dynamics is the one aspect that I really wish was improved upon from their older sets as the low end tactility is severely lacking in my opinion. 

REAL WORLD USAGE: 

Casual Use

The combination of a very clean sound and comfortable fit makes the Supermix 4 an absolute treat for consuming media both stationary and on the go. The fit is the best Simgot has ever made and allows me to move around and about with no issues. The tuning is also great as the low end allows for a decent level of passive noise cancelling and is still audible in noisier environments. The tuning is also perfect for movies, shows and watching YouTube due to the superb balance. Keep note however that you still want to drive this through something clean and nice as you want to maintain the cleanliness of the treble and the tactility of the low end. 

Gaming Use

This is arguably one of the best sets for me when it comes to gaming. Yes, you heard that right. This Harman-tuned IEM sounds great for gaming for 3 reasons. Great tuning, great fit and great technicalities. Need I say more? 

COMPARISONS

vs CCA Hydro

Compared to the CCA Hydro, the Hydro is a more v-shaped sounding set with a bigger, boomier bass, more scooped mids and brighter, more energetic treble. The Supermix 4 on the other hand is a more neutral, cleaner and more refined set overall. The Supermix 4 is ahead of the Hydro in terms of technical ability by a small margin, but the Supermix 4 exhibits better refinement over the Hydro’s traditionally hybrid sound. If you want a more fun set, you’d go for the Hydro. But if you wanted something cleaner and more neutral, you’d go for the Supermix 4

vs Celest Phoenixcall

This is honestly the closest set that I can compare with the Supermix 4 in terms of driver configuration as every other hybrid set that I’ve tried only consists of 2 driveres at most. Sound-wise, the Phoenixcall is a complete contrast to the Supermix 4. The Phoenixcall is warm, colored and sounds like it’s trying to exhibit every single driver that it has. The Supermix 4 on the other hand blends every single driver into one harmonious, bass boosted u-shaped that

vs Simgot EM6L

Compared to their last hybrid set, the EM6L is essentially a warmer, more musical and smoother set while the Supermix 4 is the more neutral, technical and built superior set. The EM6L acts as a solid reference point of Simgot’s entry into the hybrid series and the Supermix 4 is a fantastic upgrade, albeit changing the focus of the tuning from a bright but refined treble to a well-balanced bass boosted sound. One thing they both have in common is that the bass lacks punch and texture. This lead me to theorize that they used the same dynamic driver, but that’s just speculation. In short, the Supermix 4 is an improvement in every way while changing the flavor a bit

vs Simgot EA1000

The EA1000 is the definition of the Simgot magic with its superbly technical and energetic sound. The Supermix 4 is the antithesis of the EA1000 by playing it very safe with a generous low end boost, neutral mids and inoffensive treble. The magic was not lost, however, as the Supermix 4 still exhibited superb refinement like the EA1000. The EA1000 is still ahead in the macro sense with better dynamics, sharper and better defined transients and a more technical overall sound. I’d argue that the Supermix 4 is the safer set between the two, though. 

CONCLUSIONS

Simgot hit it out of the ballpark again by providing one of the most insane hybrids under $200. A very technical, well-balanced and well-fitting IEM that does the Harman tuning better than other hybrids in the price range. There’s so many things to love about the Supermix 4 and I ended up falling in-love with it the more listened to it. 

Sure, I was a little thrown off with the rather loose and lacking textured bass and the timbre might get a little metallic at times, but these are small downsides to the many upsides that the Supermix 4 offers at $149. The accessories might be a bigger issue for some and the build might not promote confidence, but I think Simgot just wanted to invest in the thing that actually matters when making an IEM

And this is what sets Simgot apart from the competition, in my opinion. They focus on what matter rather than what might be “trendy. I don’t think lacking accessories and having a cheap build is always a bad thing, especially if they make up for it in the sound department. And in my opinion, the Supermix 4 perfectly justifies both of those by being one of the most refined sounding hybrids that I’ve heard in a while.

Thank you for reading my review on the Supermix 4. If you would like to order one, consider using the non-affiliated link below: https://www.linsoul.com/products/simgot-supermix-4