Short answer: the Tin HiFi C2 Mech Warrior. It ranks #55 of 450 in-ear headphones by sound quality, rated 4.6/5, at $39; the Sivga SM100 ranks #75, rated 4.5/5, at $39. The price gap is small enough that the sound-quality ranking should decide it.
Why pick the Tin HiFi C2 Mech Warrior: The median of nine squig.link measurements gives it a preference score of 80.2 with a tidy 1.44 dB deviation, and sub-bass stays within about 1 dB of target to 30 Hz for solid low end rumble. The tradeoff: Air above 10 kHz runs about 4.6 dB hot, peaking 6.8 dB near 11.9 kHz, which can make cymbals and hiss on older recordings sound sharp.
Why pick the Sivga SM100: Twelve hobbyist measurements on squig.link put its preference score at 79.7, with a near neutral tilt and bass sitting within a fraction of a dB of target from 60 to 200 Hz. Watch for: Presence between 3 and 6 kHz sits about 2.9 dB under target with a 4.2 dB dip near 3.8 kHz, which softens guitar bite and vocal articulation.
Buy the Tin HiFi C2 Mech Warrior. It is rated higher for sound quality than the Sivga SM100 at the same price, so it is the default pick unless a specific strength of the other one matters more to you.
Want more options? Browse the full Headphones rankings.
Specifications Side By Side
| Tin HiFi C2 Mech Warrior | Sivga SM100 | |
|---|---|---|
| Price | $39.00 | $39.00 |
| Ranked | #55 of 450 in In-Ear Headphones | #75 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 81 (median of 10 squig.link measurements, calibrated to AutoEQ) | 80 (median of 13 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.40 dB standard deviation | 1.53 dB standard deviation |
| Tonal Tilt | -0.20 (negative is warmer, positive brighter) | -0.03 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.1 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-1.3 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x 10mm dynamic |
| Impedance | 32 ohms | 32 ohms |
| Sensitivity | 104 dB/mW | 107 dB |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) | 20Hz - 40kHz (Manufacturer specified) |
| Built-in Microphone | - | Yes |
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How Tin HiFi C2 Mech Warrior compares with other leading options:
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- Tin HiFi C2 Mech Warrior vs Tin HiFi C2 2025
Prices on this page were last checked October 11, 2026 at 4:59 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Headphones In Full
Tin HiFi C2 Mech Warrior: $39.00 Amazon eBay
Pros: The median of nine squig.link measurements gives it a preference score of 80.2 with a tidy 1.44 dB deviation, and sub-bass stays within about 1 dB of target to 30 Hz for solid low end rumble. A 2 dB bass lift adds punch without clouding the midrange, which sits almost exactly on target through the upper mids. At 104 dB/mW and 32 ohms it gets plenty loud from a phone.
Cons: Air above 10 kHz runs about 4.6 dB hot, peaking 6.8 dB near 11.9 kHz, which can make cymbals and hiss on older recordings sound sharp. A small 2.9 dB dip near 6.3 kHz leaves some instruments slightly recessed in the presence region.
Full Tin HiFi C2 Mech Warrior review and specifications →
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 1.40 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 81 (median of 10 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 32 ohms |
| Sensitivity | 104 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.1 dB at 30 Hz) |
| Tonal Tilt | -0.20 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Sivga SM100: $39.00 Amazon eBay
Pros: Twelve hobbyist measurements on squig.link put its preference score at 79.7, with a near neutral tilt and bass sitting within a fraction of a dB of target from 60 to 200 Hz. Upper mids run about 0.8 dB forward, so vocals come through clearly, and a modest air lift of 2.7 dB adds a little sheen. The built-in mic and 32 ohm load suit phone calls and everyday listening.
Cons: Presence between 3 and 6 kHz sits about 2.9 dB under target with a 4.2 dB dip near 3.8 kHz, which softens guitar bite and vocal articulation. Sub-bass slips about 1.8 dB below target, so the deepest bass notes are a touch lighter than the bass focused profile it fits best would suggest.
Full Sivga SM100 review and specifications →
| Back | Closed |
|---|---|
| Built-in Microphone | Yes |
| Connection | Wired |
| Deviation From Target | 1.53 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 80 (median of 13 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 32 ohms |
| Sensitivity | 107 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.3 dB at 30 Hz) |
| Tonal Tilt | -0.03 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons