Short answer: the BLON Shu. It ranks #893 of 1291 in-ear headphones by sound quality, rated 3.4/5, at $2.49; the FiiO x JadeAudio JD1 ranks #927, rated 3.3/5, and costs $4.99, so there is not much of a tradeoff to weigh.
The case for the BLON Shu: A broadly balanced tuning with a preference score of 66 against the Harman target. The catch: Treble about 4 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Why pick the FiiO x JadeAudio JD1: A broadly balanced tuning with a preference score of 65 against the Harman target. Watch for: An uneven response, 2.4 dB standard deviation from target.
Buy the BLON Shu. It is rated higher for sound quality than the FiiO x JadeAudio JD1 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Headphones rankings.
A broadly balanced tuning with a preference score of 66 against the Harman target.
Linsoul eBayA broadly balanced tuning with a preference score of 65 against the Harman target.
Amazon eBayPrices on this page were last checked October 16, 2026 at 5:46 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
| BLON Shu | FiiO x JadeAudio JD1 | |
|---|---|---|
| Price | 2.49 | 4.99 |
| Ranked | #893 of 1291 in In-Ear Headphones | #927 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 66 (median of 3 squig.link measurements, calibrated to AutoEQ) | 65 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.73 dB standard deviation | 2.37 dB standard deviation |
| Tonal Tilt | -0.33 (negative is warmer, positive brighter) | -0.72 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+2.9 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | Dual dynamic driver (1 x 10mm + 1 x 6mm composite diaphragm) | 1 x 10mm LCP (Liquid Crystal Polymer) dynamic driver |
| Impedance | 16 ohms | 24 ohms |
| Sensitivity | 118 dB/Vrms | 109 dB/mW |
| Frequency Response | 20Hz - 20,000Hz | 20Hz - 20,000Hz |
| Weight | - | 0 lbs (7 g) (per earpiece) |
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 BLON Shu from audioamigo, kuping-sensi and soundignity; the FiiO x JadeAudio JD1 from boizoff, dchpgall, ianfann and jaytiss, all via squig.link.
Related Headphone Comparisons
How BLON Shu compares with other leading options:
