Kurt reviews the SIMGOT SuperMix 5, a new hybrid dynamic, dual balanced armature, micro planar driver, and bone conduction driver IEM. It’s currently priced at $219.99.
Disclaimer: This sample was sent to me in exchange for my honest opinion. Headfonics is an independent website with no affiliate links or services. I thank the team at Linsoul and SIMGOT for giving me this opportunity.
Click here to read more about SIMGOT products we have previously reviewed on Headfonics.
Note that this article follows our latest scoring guidelines, which you can read in more detail here.
SIMGOT has put out one standout IEM after another in recent years, with sets like the EA500, EA2000, EA500LM, and the SuperMix 4 each earning strong reputations in their respective price ranges.
They have shown they can execute across a wide range of configurations, and their name has become one of the more reliable ones in the hobby.
Now comes the SIMGOT SuperMix 5, priced at $219.99, featuring a five-driver quad-brid configuration of one bone conduction driver, one dynamic driver, two balanced armatures, and one micro-planar driver.
Can SIMGOT’s first custom coil bone conduction implementation actually make a meaningful difference at this price, and how does it compare to the likes of the ZiiGaat Odyssey and Kiwi Ears Astral?
Features
The SuperMix 5 uses five drivers managed by a precision RC four-way crossover, with each driver housed in its own independent 3D-printed acoustic duct to prevent interference.
A multi-channel damping system controls phase alignment and distortion across all driver transitions.
Low frequencies are handled by an 8mm DLC dynamic driver with a flexible surround, where the DLC diaphragm provides rigidity and speed for controlled, detailed bass reproduction.
Alongside it sits a custom 10mm coil bone conduction driver that operates from 200Hz to 7kHz, designed to add low-frequency texture, improve bass response speed, and introduce subtle dynamic detail.
The midrange is covered by two large-volume balanced armature drivers selected for their conversion efficiency and natural tonal character across the vocal range.
Above them, a single micro-planar driver handles the treble closest to the nozzle, delivering high-frequency detail and resolution with a faster and more natural response than a piezoelectric driver.
Design
The faceplate is CNC-machined metal with a satin finish, carrying the angular SIMGOT logo laser-etched in white against a surface that sits between deep gray and near-black depending on the light. The etched logo is the only visual element on it.
The shell is produced via high-precision resin 3D printing in a deep, slightly translucent dark resin that faintly hints at the internals from certain angles.
The overall shape is thick and blocky, with a long nozzle that extends further from the body than most IEMs of comparable size.
Model name, driver configuration, and channel indicators are engraved in gold lettering along the inner edge of each shell. The L and R labels are compact and easy to read without cluttering the shell.
The 0.78mm 2-pin connectors sit flush and flat against the lower inner face of the shell. A single vent sits near the top of the faceplate, with additional pressure relief venting visible as small, paired holes near the 2-pin port area.
Comfort & Isolation
The SuperMix 5 has a thick, blocky shell and a long nozzle that make it difficult to sit flush in the ear. Finding a stable, sealed position takes noticeably more effort than most IEMs of this size.
The bone conduction driver creates a persistent pinging sound from its coil whenever the shell is physically disturbed, and this includes jaw movement, chewing, and talking while wearing them.
Tapping the shell makes it worse, and even incidental contact during wear is enough to trigger it.
The unusual shell shape combined with the long nozzle works against passive isolation, as the fit rarely seals consistently enough to block ambient noise. Travel is not a practical use case for the same reason, since any movement or vibration brings the pinging back persistently.
Side sleeping is ruled out entirely, as the protruding nozzle presses directly and uncomfortably into the ear under any resting pressure.
The SuperMix 5 is best treated as a stationary listening IEM, and even then, the pinging behavior requires a sit-still discipline that limits how freely it can be used.
Ear Tips
Two sets of silicone tips are included, both sharing a short stem and wide bore shape, with one set featuring a red inner stem and the other fully black. Neither is well matched to this IEM.
The red-stemmed tips use a stiffer stem that adds perceived length to the already long nozzle, making the fit harder to manage rather than easier.
The all-black set is far too soft, collapsing under light pressure and leaving the hard metal nozzle distinctly felt during wear.
Due to those issues, aftermarket tips or other SIMGOT tips are worth trying, as a firm and consistent seal is especially important here, given how much the bone conduction driver depends on steady shell-to-ear contact.
Both stock options ultimately work against comfort rather than helping it.
Stock Cable
The SuperMix 5 ships with a Litz-structured silver-plated single-crystal copper cable in white with black hardware throughout. Build quality is solid and consistent with what the set warrants.
The modular termination uses a screw-lock mechanism for attaching the included 3.5mm and 4.4mm plugs, holding firmly once locked and not loosening with repeated swaps. The white braiding is prone to yellowing over time, which will become noticeable with regular use.
On the ear, it sits light, staying in place during normal movement without pulling the IEMs out of position. It comes with a cable tie, but it does have a tendency to still tangle at times.
Packaging & Accessories
The SuperMix 5 arrives in a dark purple outer sleeve with a driver cross-section illustration and the product name on the front, with the frequency response graph and specifications on the back in multiple languages.
Removing the sleeve reveals a rigid, dark navy inner box with a debossed IEM outline on the cover and a small gold SIMGOT logo.
Opening the cover reveals the IEMs seated in foam cutouts in the top tray. Directly beneath them sits an additional accessories box housing the guide cards.
Below that is a pull-drawer section divided into two labeled compartments, one for the carry case and one for the accessories. The accessories side holds the cable, both modular plugs, and both tip sets in individual bags.
Foam protection inside the accessories compartment is lacking, with the internal boxes showing transit dents from insufficient padding.
The carry case is hard-sided with a leather-like exterior and a magnetic clasp, with fabric loops on the inside of the lid and the mesh net common to SIMGOT cases in the main cavity.
Sound Impressions
The following sound impressions of the SIMGOT SuperMix 5 were completed using a mix of the Colorfly CDA-M2 and the Heartfield R1 dongle DACs.
Bass
Sub-bass on the SIMGOT SuperMix 5 reaches deep and delivers a genuine sense of rumble, though it sits at a controlled level rather than asserting itself through the mix. The extension gives tracks with low-frequency content a solid, grounded foundation.
Punchiness is the strongest impression the low end makes, with kick drums and bass hits landing with fast, physical precision that feels decisive and contained. The tactile quality is real and immediately noticeable.
Bass quality is controlled and well-defined, with good separation between notes and no looseness under pressure. Nothing here bleeds or drags, keeping the low end organized even on busier tracks.
The character leans toward precise and focused, where each hit resolves cleanly without spreading outward. Listeners expecting a heavy or dominant low end will find the SuperMix 5’s approach restrained, as accuracy and physical feel take clear priority over quantity.
Mids
The midrange on the SIMGOT SuperMix 5 sits slightly pulled back rather than forward, presenting vocals and instruments with enough presence to be clearly heard without pushing to the front.
The bone conduction driver smooths the bass-to-midrange transition cleanly, with no bleed carrying over from the low end.
Clarity is consistent, and vocals have accurate timbre that carries real texture, capturing the raspiness and grain in a voice rather than just its tonality. There is no BA timbre or shoutiness here, keeping the presentation natural throughout.
Where the midrange falls short is in body and emotional weight. Vocals sound clean but lean, stopping short of the fullness that makes a voice feel truly present, which becomes noticeable on intimate recordings.
Nuance retrieval is one of the better surprises here, with backing vocals and subtle background details surfacing naturally during listening. They do not draw attention to themselves but reveal themselves on their own, which is an excellent quality.
Treble
The treble is well-behaved, with the micro-planar driver delivering a controlled and natural presentation that keeps fatigue out of the picture entirely. Sibilance sits at around 1 out of 10, making it one of the safest treble presentations available at this level.
Detail retrieval is on the better end, with fine textures in percussion and high-frequency instruments coming through with enough resolution to be satisfying.
The micro-planar implementation handles the top end with a tidiness that avoids the mechanical feel that lesser planar tweeters can produce.
Cymbals and hi-hats arrive with accurate tonal character and the right metallic quality, sounding lifelike with controlled decay. Nothing here tips into harshness, even on normally fatiguing tracks.
Disappointingly, airiness is average, and the SuperMix 5 does not sound particularly open above the presence region. The treble stays contained rather than expansive, sitting close to the rest of the mix without reaching beyond it.
Staging & Dynamics
The soundstage is average across all dimensions, with width, height, and depth each landing at an unremarkable middle point that keeps things organized without creating any real sense of space.
Imaging places sounds with acceptable precision but without the sharpness to make positional cues feel convincing.
Panning is the weakest point here, as sounds that should travel across the stage feel static and anchored instead. Even on tracks where directional movement is clearly intended, it simply does not translate.
Separation is above average and is the clear strength of this section, keeping individual elements distinct without collapsing into congestion. A slight blending occurs under heavy load, but it never becomes messy enough to lose track of what is happening in the mix.
Dynamics is the weakest aspect of the SuperMix 5 overall, with sounds that should sit at different volume levels within a track often arriving at the same perceived loudness.
The flatness this creates takes away from the sense of depth and contrast that well-mastered recordings are meant to deliver.
Click on page 2 below for my recommended pairings and selected comparisons.
