Short answer: the Harmonic Empire Cai Wenji. It ranks #956 of 1369 in-ear headphones by sound quality, rated 3.3/5, at $1.99; the Twistura D-MINOR ranks #1038, rated 3.1/5, at $1.90. The price gap is small enough that the sound-quality ranking should decide it.
The case for the Harmonic Empire Cai Wenji: A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap. Watch for: Treble about 5 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Why pick the Twistura D-MINOR: A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap. The tradeoff: An uneven response, 2.8 dB standard deviation from target.
Buy the Harmonic Empire Cai Wenji. It is rated higher for sound quality, and the $0.09 you would save on the Twistura D-MINOR does not close the gap.
Looking for alternatives? See the complete Headphones rankings.
A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap.
Shenzhen Audio eBay
A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap.
Twistura eBayPrices on this page were last checked October 17, 2026 at 6:04 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Harmonic Empire Cai Wenji | Twistura D-MINOR | |
|---|---|---|
| Price | 1.99 | 1.90 |
| Ranked | #956 of 1369 in In-Ear Headphones | #1038 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 65 (median of 7 squig.link measurements, calibrated to AutoEQ) | 63 (median of 8 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.58 dB standard deviation | 2.75 dB standard deviation |
| Tonal Tilt | -0.81 (negative is warmer, positive brighter) | -0.63 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.9 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-1.9 dB at 30 Hz) |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm PEEK+PU dynamic driver | 1 x 10mm dynamic driver (LCP dome composite diaphragm) |
| Impedance | 16 ohms | 30 ohms |
| Sensitivity | 114 dB | 108 dB/Vrms |
| Frequency Response | 20Hz - 20kHz | 15Hz - 37kHz |
| Weight | 0 lbs (3.9 g) | - |
| Connection | Wired | Wired |
Frequency Response Compared
Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.
Measurement data: the Harmonic Empire Cai Wenji from aftersound, bassaudio, csi-zone, dvewlsh, fernandagunsan, hbb and soundignity; the Twistura D-MINOR from audioamigo, boizoff, hu-fi, kuping-sensi, pw, theaudiostore, treblewellxtended and vortexreviews, all via squig.link.
Related Headphone Comparisons
More worthwhile head-to-heads for Harmonic Empire Cai Wenji: