Wired IEMs
KZ Castor Pro
68Good
$24
Full review dataKZ Castor Pro vs TRUTHEAR HEXA: which should you buy?
On aggregated review scores the TRUTHEAR HEXA comes out ahead with an HearWiki score of 78. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: TRUTHEAR HEXA - Great overall at around $25.
Wired IEMs
TRUTHEAR HEXA
78Great
$25
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
KZ Castor Pro
Sound7.0
Value8.0
TRUTHEAR HEXA
Sound7.8
Value8.2
Specifications
| Spec | KZ Castor Pro | TRUTHEAR HEXA |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $24 | $25 |
| HearWiki score | 68 / 100 · Good | 78 / 100 · Great |
| Released | 2024 | 2022 |
| Audio | ||
| Driver | 10mm+10mm Dual Dynamic Drivers | 1DD+3BA Hybrid |
| Driver size | 10 mm | 10 mm |
| Drivers per side | 2 | 4 |
| Frequency response | 20Hz-40kHz | 20Hz-20kHz |
| Impedance | 16 Ω | 20.5 Ω |
| Sensitivity | 100-103dB / 101-104dB | 120 dB/mW |
| Wireless | ||
| Multipoint pairing | No | No |
| Battery | ||
| Quick charge | none | - |
| Wireless charging | No | - |
| Features | ||
| Active noise cancelling | No | No |
| ANC type | none | - |
| Transparency mode | No | - |
| Companion app | No | - |
| Custom EQ | No | - |
| Wear detection | No | - |
| Controls | buttons | - |
| Voice assistant | none | - |
| Design | ||
| Weight | - | 6 g |
| Detachable cable | - | Yes |
| USB-C | No | No |
What reviewers said
KZ Castor Pro
The KZ Castor Pro is an ultra-affordable dual-dynamic-driver IEM that packs a surprising amount of tuning flexibility for its price. While it brings some technical improvements over its predecessor, its appeal depends heavily on your preference for bass-heavy or balanced sound, as its adjustable switches let you shape the low end. It's a solid budget pick for gaming and bass lovers, though it doesn't drastically outshine the original Castor for everyone.
- Pro:Quad-switch tuning for adjustable bass response
- Pro:Very affordable dual-driver setup
- Pro:Strong low-end impact and flexibility
- Con:No app support or EQ customization
- Con:Lacks a compelling upgrade over the standard Castor
- Con:Sound signature may feel too bass-forward for some
TRUTHEAR HEXA
The TRUTHEAR HEXA is a hybrid in-ear monitor that combines a single 10mm dynamic driver with three balanced armatures to deliver a balanced, neutral-leaning sound with a slight warmth. Priced around $90, it offers a comfortable fit, solid build, and good passive isolation, making it a strong value pick for critical listening, though its bass response is somewhat restrained and the soundstage feels intimate rather than expansive. Its technical performance is competent for the price, but it's not particularly suited for gaming or high-energy activities.
- Pro:Comfortable and lightweight design
- Pro:Excellent passive noise isolation
- Pro:Balanced, neutral tuning with a touch of warmth
- Con:Bass is somewhat restrained
- Con:Soundstage is fairly intimate
- Con:Not ideal for gaming due to mediocre imaging
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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