The qdc Gemini ranks #103 out of 238 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: qdc
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#103 qdc Gemini: $2,137.00 Shenzhenaudio eBay
Pros: Crinacle’s measurement gives it a preference score of 74, and it is rated above the ThieAudio V16 Divinity and the Noble Audio Kadence. In squig.link measurements bass and mids track the target within about 1 dB, so instruments and voices keep natural weight, and air above 10 kHz is lifted about 3 dB for added openness. Eight balanced armatures at 25 ohms and 112 dB sensitivity play easily from a phone.
Cons: Presence from 3 to 6 kHz falls almost 6 dB short of target, with a dip of about 9.6 dB near 5.5 kHz, which dulls vocal clarity and attack on guitars and snares. Sub-bass sits about 3.7 dB below target, so the deepest rumble is lighter than ideal. The Shuoer Cadenza 12 is rated higher at a similar price.
| Released | 2019 (7 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 2.23 dB standard deviation |
| Driver Type | Balanced armature |
| Drivers | 8 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 74 (measured by crinacle, via AutoEQ) |
| Impedance | 25 ohms |
| Sensitivity | 112 dB SPL/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.4 dB at 30 Hz) |
| Tonal Tilt | -0.12 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -4.6 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 | +1.7 dB | 0.70 |
| Peak | 153 Hz | -2.4 dB | 1.05 |
| Peak | 1,388 Hz | -2.6 dB | 2.20 |
| Peak | 3,050 Hz | +1.9 dB | 3.26 |
| Peak | 6,697 Hz | +2.8 dB | 0.80 |
| High shelf | 10,000 Hz | -3.0 dB | 0.70 |
| Peak | 517 Hz | +0.8 dB | 1.45 |
| Peak | 5,408 Hz | +2.5 dB | 6.00 |
| Peak | 4,520 Hz | -1.9 dB | 6.00 |
| Peak | 262 Hz | -0.4 dB | 1.93 |
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