By aspect — in detail
Tonality
Moderate · 10 srcDirectionally agreed, semantically split. Every source hears a bright-leaning, clarity-first tuning with an emphasized-but-clean midrange and fully extended highs; none call it warm or dark. What varies is the label and how much low-end warmth each listener hears — from 'very neutral' (Headphoneer, soundbsessive) through a 'warm and bright U-shape' (zipx1) to a 'mildly V-shaped' analytical balance (Mobile Audiophile), out to one 'visceral, raw V-shaped' outlier (Resonance, a self-described treble-sensitive listener).
“The Horizon has a very neutral sound signature, nicely balancing bass, midrange, and treble.”
Headphoneer (Chris)
“The tuning results in a mildly V-shaped signature, with a subtle lift in the lows and fully extended highs; however, the mids remain well emphasized, keeping vocals and instruments clean and natural.”
Mobile Audiophile
“Bright leaning all-rounder with a detailed treble playback.”
JAYYAUDIO, r/iems
Measured
ZiiGaat's spec sheet lists 1DD + 2BA + 2 planar, 24 Ω, 102 dB, 20 Hz–35 kHz and 0.55% THD, and claims 'an almost completely linear treble extension' deviating no more than 4 dB across 20 Hz–35 kHz. Resonance's own graph reads it as bass 'lifted and prominent' with an 'almost-dominant' upper-midrange and treble sitting just below that; audioreview.frieve.com, an objectivist read, flags the 0.55% THD as high and notes no widely-published independent frequency response exists to verify the linearity claim.
A fast, tight, sub-bass-leaning low end off the single 10 mm dynamic that stays cleanly out of the mids — the quality is near-universally liked. The split is quantity: the strong majority hear it as deliberately polite, quality-over-quantity and explicitly not for bassheads, while a minority hear it as genuinely lifted and substantive. Seal and tips move it a lot — a poor fit thins it out.
Measured
A single 10 mm bio-diaphragm dynamic handles the lows; ZiiGaat says 'the sub-bass kicks are tight, but the bass roll-off is more lenient.' That elevated-sub-bass / lenient-mid-bass shape reconciles the split — it reads as 'lifted' on a graph yet 'polite' in mid-bass punch to listeners wanting slam. soundbsessive notes it directly: 'Compared to other Ziigaat offerings, such as the Odyssey 2, I found the sub-bass lighter, although it might be fit dependant.'
Where it splits
Polite and quality-first — tight, fast, sub-bass-focused, and not a basshead tuning (a couple find it a touch lean).80%
“It lacks the slam and authority found in other ZiiGaat models, presenting a more polite low-end response.”
Headfonics (Kurt)
Lifted and substantive — punches and rumbles in real quantity.20%
“The Horizon is capable of punching and rumbling, and does so in sufficient quantities to quench my thirst for bass”
Resonance Reviews (Aaron)
A quiet strength, and more natural than the tribrid/BA driver count implies. The midrange is repeatedly called clean, transparent and coherent, with vocals sitting right and little BA timbre; the only recurring caveat is that the polite mid-bass can leave male vocals leaning a touch thin.
“The midrange is indeed very clean, offering a level of transparency that is impressive for a hybrid.”
Headfonics (Kurt)
“Both male and female vocals have a natural timbre, though the lack of midbass support can make male vocals lean slightly towards the thinner side.”
Headfonics (Kurt)
“Regarding note weight and timbre, even though the Horizon is a tribrid, I actually find the Horizon to be slightly more natural.”
zipx1, r/IemReviews
The Horizon's headline and its fault line at once. Every source agrees the dual micro-planar tweeters give it exceptional extension, air, sparkle and detail — for many it's the best thing about the set. Where they split is fatigue: one camp hears the brightness as refined and well-controlled at normal volume, while a larger share find it genuinely bright — spicy, sibilant or fatiguing for the treble-sensitive, at higher volume, or on already-bright tracks. How it lands tracks your ears, tips, seal and listening level more than any one 'true' treble.
Measured
Two custom composite planar drivers handle the highs; ZiiGaat claims linear treble extension to 35 kHz within 4 dB. No widely-published independent frequency response exists to check that (audioreview.frieve.com flags the gap), so the treble read leans on listening impressions plus Resonance's own graph. The fatigue split is not really about the graph — it tracks listener treble-sensitivity, listening level, and seal: requiemreview notes that with poor stock tips he 'lost bass and gained sibilance,' and that a better seal and source tame it.
Where it splits
Extended and airy but well-judged — bright without crossing into harsh or fatiguing at sane volume.36%
“It is bright and clear but well balanced, never painfully harsh, and even sibilance is handled smoothly.”
Headphoneer (Chris)
Genuinely bright — it turns spicy, sibilant or fatiguing for the treble-sensitive, at volume, or on bright recordings.64%
“However, this extension comes with a caveat, as the treble can be spicy or fatiguing at times. There are hints of sibilance that rear their head, especially on tracks that are already prone to brightness.”
Headfonics (Kurt)
Soundstage
Strong consensus · 8 srcA standout, with broad agreement. Reviewers hear a large, open, holographic 3D stage — wide with real depth and height — that punches above an in-ear's usual limits. The only temper is a direct A/B where the width lands about even with the pricier Kiwi Ears Astral.
“The soundstage on the Horizon is great, offering a spacious listening environment that feels open and unconfined.”
Headfonics (Kurt)
“Soundstage is MASSIVE, one of the biggest I've heard under 500 € no cap. Not just wide (it is, a ton), but real depth and legit height.”
requiemreview, r/iems
Imaging
Strong consensus · 7 srcA clear strength with little disagreement — arguably the more consistent half of the stage/imaging pair. Placement is called precise and holographic, instrument separation clean even in busy tracks, and the planar speed helps pin transients across the field.
“Imaging is a strong suit, with subtle shifts of sound upward or downward being heard with great accuracy.”
Headfonics (Kurt)
“Imaging is surgical. Instruments have crystal outlines, like spotlights on each.”
requiemreview, r/iems
Detail
Strong consensus · 9 srcThe consensus headline — the 'detail beast.' Sources uniformly rate resolution and micro-detail as class-strong for roughly $300, credited to the planar treble and clean tuning; transients are quick and little is masked. The flip side is that this analytical bent is exactly what the brightness camp finds tiring.
“The resolution of detail is astonishing.”
Mobile Audiophile
“I find the detail level to be quite impressive, especially the treble – but the Horizon is generally and consistently a detailed, refined and effortless sounding IEM.”
Headphoneer (Chris)
Measured
audioreview.frieve.com frames the same trait objectively — the Horizon 'targets users prioritizing analytical detail retrieval and extended treble performance over immediate musical impact,' i.e. the resolution everyone praises is the analytical character the fatigue camp reacts to.
Good micro-dynamics from the fast planar treble, but macro-dynamic slam is limited by the polite low end, and a couple of sources note it doesn't scale infinitely — very loud or very dense passages harden or compress slightly. Benefits from a cleaner, more powerful source.
“Dynamics are generally good, though the restrained bass limits the impact of macro-dynamic swings.”
Headfonics (Kurt)
“handles volume increases well, although it doesn’t scale infinitely: at very high volumes, you can notice a slight hardening of the sound”
Mobile Audiophile
Broadly comfortable — lightweight resin shells that many wear for hours — with two caveats: the classic ZiiGaat nozzle protrusion makes side-sleeping impractical, and a few need to fiddle for a consistent seal (which also matters because fit shifts the bass and brightness).
“I could wear these for hours because of their style and fit without feeling any sore ears.”
Digital Chumps
“However, I wouldn’t use it for sleep since the classic ZiiGaat protrusion makes lying on your side difficult.”
Headfonics (Kurt)
“The seal depends 100% on your ears and tips. With the stock ones I lost bass and gained sibilance.”
requiemreview, r/iems
Two-sided. The handcrafted resin shell, metal nozzles and generous kit (three tip styles, a modular 3.5/4.4 mm cable, spare nozzle filters, a case) are liked, and some note the cheaper Odyssey 2's metal shell looks more premium. The stock cable itself is the split: several call it thin, boring and tangle-prone with a weak modular lock, while others find it thick and well-built.
“The stock cable is a bit of a letdown in terms of feel, coming across as just “meh” and rather boring.”
Headfonics (Kurt)
“The cable feels thick and well constructed, and the flat connector below the jack helps keep tangling to a minimum.”
Mobile Audiophile
Measured
The box holds a detachable 4-core 0.78 mm 2-pin silver-plated OFC cable with swappable 3.5 mm and 4.4 mm plugs, three transparent + three black silicone tip pairs, a foam pair, spare nozzle filters and a carrying case; warranty is one year on the IEMs, three months on the cable. audioreview.frieve.com flags the modular plug's 'simple plug design without locking mechanisms' as a reliability nit.
Isolation
Moderate · 3 srcAdequate for daily use — the sealed fit blocks enough outside noise for commuting and desk listening, and tip choice (foam vs silicone) trades a little isolation for tonal balance. Not a heavily-covered aspect, with little disagreement among the sources that mention it.
“The seal creates a quiet environment that works well for daily use, blocking out distractions effectively.”
Headfonics (Kurt)
“Passive isolation is good thanks to the selected tips, allowing you to appreciate even the finest details without external interference.”
Mobile Audiophile
Widely seen as a strong technical value near $329 — repeatedly called a set that punches above its price for detail, stage and treble extension, and one community reviewer's favourite ZiiGaat to date. The dissent is an objectivist one: an ASR-style read weighs the 0.55% THD spec and far cheaper alternatives against it rather than the listening experience.
“The hybrid ZiiGaat Horizon IEM offers a technical performance that punches well above its price point.”
Headfonics (Kurt)
“The Horizon is one of the best price to performance sets around $300 with the dynamics in the treble to back it up.”
JAYYAUDIO, r/iems
Measured
MSRP is $329 ($296 street per Mobile Audiophile, ~€220 on AliExpress with coupons per requiemreview). The dissenting anchor is audioreview.frieve.com, whose objectivist read scores cost-performance 0.2 and argues a $55 Truthear x Crinacle ZERO:RED 'provides equivalent-or-better measured performance at a significantly lower price point' — a measurement-first framing that trades away the Horizon's stage, extension and resolution.
