Short answer: the HiBy Crystal 6. Both are rated 3.0/5 for sound quality (#390 and #388 of 450 in-ear headphones), and the HiBy Crystal 6 costs $459 against $551.65 for the Yanyin Mahina, with sound quality a draw, the lower price decides it.
What the HiBy Crystal 6 does well: A lively V-shaped tuning with about 3.7 dB of extra bass and a treble lift of 5 to 6 dB above 6 kHz, which gives drums punch and cymbals plenty of sparkle. Watch for: Squig.link measurements show a 9.9 dB peak near 7.9 kHz, so sibilance and hi-hats can turn sharp and fatiguing at higher volumes.
Why pick the Yanyin Mahina: A seven driver hybrid with a 10mm dynamic woofer, four balanced armatures and two electrostatic tweeters, tuned dark and relaxed for listeners who dislike bright treble. The catch: Squig.link measurements show presence about 7.3 dB below target with a 10.3 dB dip near 5.4 kHz, so vocals, strings and percussion lose clarity and attack.
Buy the HiBy Crystal 6. Both are rated the same for sound quality, and it costs $92.65 less than the Yanyin Mahina.
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Specifications Side By Side
| HiBy Crystal 6 | Yanyin Mahina | |
|---|---|---|
| Price | $459.00 | $551.65 |
| Ranked | #390 of 450 in In-Ear Headphones | #388 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 62 (measured by crinacle, via AutoEQ) | 62 (measured by crinacle, via AutoEQ) |
| Deviation From Target | 3.17 dB standard deviation | 2.78 dB standard deviation |
| Tonal Tilt | +0.21 (negative is warmer, positive brighter) | -1.05 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Driver Type | Balanced armature | Hybrid (1 dynamic + 4 balanced armature + 2 electrostatic) |
| Drivers | 6 x balanced armature | 1 x 10mm dynamic + 4 x balanced armature + 2 x electrostatic |
| Impedance | 14 ohms | 8 ohms |
| Sensitivity | 107 dB/mW | 118 dB |
| Frequency Response | 5Hz - 60kHz (Manufacturer specified) | 5Hz - 50kHz (Manufacturer specified) |
| Built-in Microphone | No | No |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-5.0 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.8 dB at 30 Hz) |
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- HiBy Crystal 6 vs Shanling ME700
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
HiBy Crystal 6: $459.00 HiFiGo eBay
Pros: A lively V-shaped tuning with about 3.7 dB of extra bass and a treble lift of 5 to 6 dB above 6 kHz, which gives drums punch and cymbals plenty of sparkle. Sub-bass stays within 6 dB of target down to 20 Hz. Six balanced armatures at 14 ohms and 107 dB/mW run fine from a phone. It matches the rating of the Shanling ME700 for less money.
Cons: Squig.link measurements show a 9.9 dB peak near 7.9 kHz, so sibilance and hi-hats can turn sharp and fatiguing at higher volumes. A 3.7 dB lift from 200 Hz to 1 kHz thickens male vocals and lower instruments. The Etymotic ER4XR earns the same rating for considerably less.
Full HiBy Crystal 6 review and specifications →
| Released | Mar 2021 (5 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 3.17 dB standard deviation |
| Driver Type | Balanced armature |
| Drivers | 6 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 5Hz - 60kHz (Manufacturer specified) |
| Harman Preference Score | 62 (measured by crinacle, via AutoEQ) |
| Impedance | 14 ohms |
| Sensitivity | 107 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-5.0 dB at 30 Hz) |
| Tonal Tilt | +0.21 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -4.5 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.0 dB | 0.70 |
| Peak | 173 Hz | -3.8 dB | 0.30 |
| Peak | 1,805 Hz | +2.9 dB | 2.77 |
| Peak | 6,231 Hz | -6.6 dB | 5.99 |
| Peak | 945 Hz | +4.5 dB | 0.93 |
| High shelf | 10,000 Hz | +0.4 dB | 0.70 |
| Peak | 4,649 Hz | +2.8 dB | 5.98 |
| Peak | 2,604 Hz | -1.7 dB | 6.00 |
| Peak | 5,438 Hz | -1.5 dB | 6.00 |
| Peak | 36 Hz | -0.2 dB | 1.94 |
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Yanyin Mahina: $551.65 Linsoul eBay
Pros: A seven driver hybrid with a 10mm dynamic woofer, four balanced armatures and two electrostatic tweeters, tuned dark and relaxed for listeners who dislike bright treble. From 60 Hz to 1 kHz it sits within half a decibel of target, so bass and lower mids sound even and natural. At 118 dB sensitivity it plays loud from any phone. It rates above the Audio-Technica ATH-CK2000Ti for less money and matches the InEar StageDiver SD5 for considerably less.
Cons: Squig.link measurements show presence about 7.3 dB below target with a 10.3 dB dip near 5.4 kHz, so vocals, strings and percussion lose clarity and attack. Sub-bass sits about 2.5 dB under target below 60 Hz, softening rumble. The HiBy Crystal 6 earns the same rating for less money.
Full Yanyin Mahina review and specifications →
| Released | Aug 2022 (4 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 2.78 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 4 balanced armature + 2 electrostatic) |
| Drivers | 1 x 10mm dynamic + 4 x balanced armature + 2 x electrostatic |
| Form Factor | In-ear |
| Frequency Response | 5Hz - 50kHz (Manufacturer specified) |
| Harman Preference Score | 62 (measured by crinacle, via AutoEQ) |
| Impedance | 8 ohms |
| Sensitivity | 118 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.8 dB at 30 Hz) |
| Tonal Tilt | -1.05 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -4.8 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -1.8 dB | 0.70 |
| Peak | 4,493 Hz | +4.7 dB | 0.21 |
| Peak | 213 Hz | -2.9 dB | 0.77 |
| Peak | 1,633 Hz | -6.5 dB | 1.15 |
| Peak | 9,800 Hz | -0.2 dB | 1.87 |
| High shelf | 10,000 Hz | -3.0 dB | 0.70 |
| Peak | 74 Hz | +0.7 dB | 1.64 |
| Peak | 4,343 Hz | -1.8 dB | 6.00 |
| Peak | 7,760 Hz | +1.3 dB | 2.43 |
| Peak | 132 Hz | -0.5 dB | 2.19 |
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