Over-Ear
1MORE SonoFlow Pro HQ51
78Great
$81
Full review data1MORE SonoFlow Pro HQ51 vs Austrian Audio Hi-X15: which should you buy?
On aggregated review scores the Austrian Audio Hi-X15 comes out ahead with an HearWiki score of 84. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Austrian Audio Hi-X15 - Great overall at around $149.
Over-Ear
Austrian Audio Hi-X15
84Great
$149
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
1MORE SonoFlow Pro HQ51
Sound7.5
Noise cancelling7.0
Battery9.5
Calls6.5
Value8.5
Austrian Audio Hi-X15
Sound8.5
Value9.0
Specifications
| Spec | 1MORE SonoFlow Pro HQ51 | Austrian Audio Hi-X15 |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $81 | $149 |
| HearWiki score | 78 / 100 · Great | 84 / 100 · Great |
| Released | 2025 | 2021 |
| Audio | ||
| Driver | dynamic | dynamic |
| Driver size | 40 mm | 44 mm |
| Drivers per side | 2 | 2 |
| Frequency response | 20Hz-40kHz | 12Hz-24kHz |
| Impedance | 32 Ω | 25 Ω |
| Sensitivity | 98 dB/mW | 99 dB/mW |
| Sensitivity (dB/Vrms) | - | 113 |
| Wireless | ||
| Bluetooth | LDAC | - |
| Bluetooth version | 5.4 | - |
| Codecs | SBC, AAC, LDAC | - |
| Multipoint pairing | Yes | No |
| Wireless range | 10 m | - |
| Battery | ||
| Battery life | 100 h | - |
| Battery life (ANC on) | 65 h | - |
| Full charge time | 80 min | - |
| Quick charge | 5 min = 10 h | - |
| Wireless charging | No | - |
| Features | ||
| Active noise cancelling | Yes | No |
| ANC type | hybrid | - |
| Transparency mode | Yes | - |
| Companion app | Yes | - |
| Custom EQ | Yes | - |
| Controls | buttons | - |
| Design | ||
| Weight | 246 g | 255 g |
| Water resistance | none | - |
| Foldable | - | Yes |
| Detachable cable | - | Yes |
| USB-C | Yes | No |
What reviewers said
1MORE SonoFlow Pro HQ51
The 1MORE SonoFlow Pro HQ51 are over-ear wireless headphones that offer a compelling mix of features for their modest price. They combine hybrid active noise cancellation with an exceptionally long battery life, especially when ANC is turned off, and support high-quality LDAC Bluetooth streaming. While the build feels a bit basic, their clear sound with strong bass, effective ANC, and marathon runtime make them a standout value option.
- Pro:Exceptional battery life, up to 100 hours without ANC
- Pro:Effective hybrid noise cancellation and transparency mode
- Pro:Supports LDAC for high-resolution wireless audio
- Con:Plastic build doesn't feel premium
- Con:No water resistance rating
- Con:Controls are limited to physical buttons
Austrian Audio Hi-X15
The Austrian Hi-X15 is a wired over-ear headphone that brings studio-grade clarity and detail to a budget-friendly price point. Its lightweight, foldable build and low-impedance design make it a practical choice for on-the-go engineers, while the 44mm dynamic drivers deliver a balanced, revealing sound that suits tracking and mixing tasks. It offers impressive value for those seeking transparent monitoring without breaking the bank.
- Pro:Excellent price-to-performance ratio
- Pro:Lightweight and foldable for portability
- Pro:Easy to drive with low impedance and high sensitivity
- Con:Lacks Bluetooth or multipoint connectivity
- Con:No active noise cancellation
- Con:Some technical specifications are not fully disclosed
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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