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TRUTHEAR
TRUTHEAR Pure 1DD+3BA Hybrid Wired Earphones
Key specs
Material Chassis Primary
ResinMost commonResin31%Plastic25%Aluminum17%Metal6%
Resin is the most common — on 31% 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).
Ear Tip Material
Most commonSilicone64%Memory foam20%Foam12%Others4%
Memory foam is the most common — on 20% of the 50 in-ear monitors we've cataloged (of 39).
Has Microphone
NoMost commonFalse66%True34%
False is the most common — on 66% of the 35 in-ear monitors we've cataloged (of 39).
Build
- Material Chassis Primary
- Resin
Connectivity
- Connection Type
- Wired-3.5mm
- Cable Type
- 3.5mm single-ended, 2-pin detachable
Design
- Ear Tip Material
- Silicone, memory foam
- Color Options
- Black
- Ear Tip Sizes Included
- S, M, L
- Earbud Form Factor
- In-ear
- Detachable Cable
- Yes
- Wearing Style
- Over-ear (cable up)
Microphone
- Has Microphone
- No
Sound
- Driver Count
- 4
- Driver Type
- Hybrid
- Frequency Response
- 20-20000 Hz
- Frequency Response High Hz
- 20000 Hz
- Frequency Response Low Hz
- 20 Hz
- Frequency Response Signature
- Warm
- Impedance
- 13.8 Ω
- Sensitivity
- 124 dB/mW
SoundGuys review
Read the full review ›SOUNDGUYS rating
Reviewed byJhaycee CalvezVideo Producer/WriterReviewed November 2025
7.0/ 10
RecommendedIsolation8.0
Comfort & fit4.5
Connectivity6.5
Design7.0
Portability8.0
Value8.5
The verdict
The Truthear Pure is a great-sounding IEM that leans on the darker side. This makes it great for listening to hard-thumping music and explosions in action games. For bass heads and those who play a lot of action games, these are among the best value IEMs you can get.
✓What we like
✓Great sound
✓Good bass
✓Great for action games
✕What could be better
✕Ear Hooks too large for some people
✕Large nozzle
Lab data
How we test ›Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.
TRUTHEAR Pure 1DD+3BA Hybrid Wired EarphonesSoundGuys 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 | 6.0 |
| 25 | 5.5 |
| 32 | 4.9 |
| 40 | 4.2 |
| 50 | 3.5 |
| 63 | 2.7 |
| 80 | 2.0 |
| 100 | 1.3 |
| 125 | 0.6 |
| 160 | -0.3 |
| 200 | -0.8 |
| 250 | 0.2 |
| 315 | -0.4 |
| 400 | -1.2 |
| 500 | -1.9 |
| 630 | -1.5 |
| 800 | -0.8 |
| 1000 | 0.0 |
| 1250 | 1.0 |
| 1600 | 2.2 |
| 2000 | 3.7 |
| 2500 | 6.0 |
| 3150 | 6.5 |
| 4000 | 4.8 |
| 5000 | 4.1 |
| 6300 | 2.1 |
| 8000 | 0.1 |
| 10000 | -1.7 |
| 12500 | -10.2 |
| 16000 | -16.1 |
| 20000 | -27.4 |
TRUTHEAR Pure 1DD+3BA Hybrid Wired Earphones
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 | 5.3 |
| 26 | 7.2 |
| 33 | 5.0 |
| 41 | 6.1 |
| 52 | 8.9 |
| 65 | 8.6 |
| 82 | 8.5 |
| 103 | 10.2 |
| 130 | 10.6 |
| 163 | 10.1 |
| 205 | 7.3 |
| 259 | 10.3 |
| 325 | 15.9 |
| 410 | 23.1 |
| 516 | 15.7 |
| 613 | 15.3 |
| 772 | 18.7 |
| 972 | 20.0 |
| 1220 | 26.2 |
| 1540 | 33.9 |
| 1940 | 37.6 |
| 2440 | 39.8 |
| 3070 | 42.6 |
| 3870 | 39.1 |
| 4870 | 37.6 |
| 6130 | 47.6 |
| 7720 | 51.5 |
| 9720 | 42.5 |
| 12200 | 35.9 |
| 15400 | 49.4 |
| 19400 | 50.1 |
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