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1 / 8Linsoul
Linsoul 7Hz Salnotes Zero HiFi 10mm
Sound
4.5/ 5
SoundMDAQS OverallMDAQS Overall — measured in the SoundGuys lab.
Key specs
Material Chassis Primary
Resin31%Plastic25%Aluminum17%Metal6%
Plastic appears on 25% of the 48 in-ear monitors we've cataloged (of 39).
Connection Type
Wired-3.5mmMost commonWired-3.5mm92%Bluetooth8%
Wired-3.5mm is the most common — on 92% of the 39 in-ear monitors we've cataloged (of 39).
Has Microphone
YesFalse66%True34%
True appears on 34% of the 35 in-ear monitors we've cataloged (of 39).
Driver Size
10 mmAbove average10 mm
7 mm13 mm
above average for in-ear monitors — based on 23 of 39 we've cataloged.
Build
- Material Chassis Primary
- Plastic, stainless steel
Connectivity
- Connection Type
- Wired-3.5mm
- Cable Type
- 2-pin detachable
Microphone
- Has Microphone
- Yes
Sound
- Driver Size
- 10 mm
- Driver Count
- 1
- Driver Type
- Dynamic
- Frequency Response
- 10-20000 Hz
- Frequency Response High Hz
- 20000 Hz
- Frequency Response Low Hz
- 10 Hz
- Frequency Response Signature
- Neutral
- Impedance
- 32 Ω
- Sensitivity
- 108 dB/mW
Design
- Color Options
- Black, blue, orange, red, rose, white
- Earbud Form Factor
- In-ear
- Detachable Cable
- Yes
SoundGuys review
Read the full review ›Isolation6.2
Comfort & fit8.7
Connectivity6.5
Design9.5
Portability8.5
Features6.0
The verdict
The Linsoul 7Hz Salnotes Zero are incredibly inexpensive, decently-performing in-ear monitors. Though wired earbuds have fallen out of vogue with the mass market, dedicated wired enthusiasts can enjoy very low-cost earbuds if they're okay with a cable.
✓What we like
✓Price
✓Sound quality
✓Isolation
✓Replaceable cable
✕What could be better
✕Mic
✕No IP rating
✕No case
Lab data
How we test ›Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.
Linsoul 7Hz Salnotes Zero HiFi 10mmSoundGuys Headphone Preference Curve
Measured frequency response (dB) against the SoundGuys house target — the dashed curve. The closer the measured line tracks the target, the more neutral the tuning; peaks ride above the target, dips fall below it.
Frequency response — measurement data
| Frequency (Hz) | Response (dB) |
|---|---|
| 20 | 2.8 |
| 25 | 2.4 |
| 32 | 1.8 |
| 40 | 1.1 |
| 50 | 0.3 |
| 63 | -0.5 |
| 80 | -1.4 |
| 100 | -2.2 |
| 125 | -3.0 |
| 160 | -4.1 |
| 200 | -3.9 |
| 250 | -3.2 |
| 315 | -3.8 |
| 400 | -4.3 |
| 500 | -4.3 |
| 630 | -2.8 |
| 800 | -1.6 |
| 1000 | 0.1 |
| 1250 | 1.8 |
| 1600 | 3.9 |
| 2000 | 5.6 |
| 2500 | 7.2 |
| 3150 | 9.0 |
| 4000 | 10.7 |
| 5000 | 5.0 |
| 6300 | -1.1 |
| 8000 | 1.2 |
| 10000 | -0.5 |
| 12500 | -10.8 |
| 16000 | -15.0 |
| 20000 | -26.4 |
Linsoul 7Hz Salnotes Zero HiFi 10mm
Passive isolation (dB) with ANC off — how much ambient noise the fit blocks on its own. Higher on the chart means more attenuation.
Passive isolation — measurement data
| Frequency (Hz) | Attenuation (dB) |
|---|---|
| 21 | 2.5 |
| 26 | 2.5 |
| 33 | 2.5 |
| 41 | 3.2 |
| 52 | 1.6 |
| 65 | 2.8 |
| 82 | 2.4 |
| 103 | 3.3 |
| 130 | 3.2 |
| 163 | 2.9 |
| 205 | 3.5 |
| 259 | 4.2 |
| 325 | 6.5 |
| 410 | 8.1 |
| 516 | 8.2 |
| 613 | 7.7 |
| 772 | 12.9 |
| 972 | 15.8 |
| 1220 | 18.4 |
| 1540 | 21.6 |
| 1940 | 23.8 |
| 2440 | 25.2 |
| 3070 | 23.1 |
| 3870 | 23.6 |
| 4870 | 28.2 |
| 6130 | 25.0 |
| 7720 | 31.0 |
| 9720 | 30.2 |
| 12200 | 30.7 |
| 15400 | 15.7 |
| 19400 | 24.2 |
Linsoul 7Hz Salnotes Zero HiFi 10mm
4.8
4.0
3.2
4.5
Multi-Dimensional Audio Quality Scores (1–5), modeled from the measured response. Higher is better across timbre, distortion, and immersiveness — add other models to see where this one lands.
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