Short answer: a tie on sound quality. Both are rated 3.3/5 (#957 and #959 of 1369 in-ear headphones) at nearly the same price ($49 vs $45), so choose on features and fit.
The case for the HeartField Blanc: A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap. The catch: An uneven response, 2.8 dB standard deviation from target.
The case for the qdc x FitEar Superior EX: A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap. The catch: Treble about 4 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Buy the HeartField Blanc or the qdc x FitEar Superior EX on features: they are rated the same for sound quality at close to the same price.
Still deciding? The full Headphones rankings cover every ranked option.
A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap.
Linsoul eBay
A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap.
Elise Audio 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
| HeartField Blanc | qdc x FitEar Superior EX | |
|---|---|---|
| Price | 49.00 | 45.00 |
| Ranked | #957 of 1369 in In-Ear Headphones | #959 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 65 (median of 3 squig.link measurements, calibrated to AutoEQ) | 65 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.83 dB standard deviation | 2.57 dB standard deviation |
| Tonal Tilt | +0.22 (negative is warmer, positive brighter) | -0.72 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.5 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.7 dB at 30 Hz) |
| Driver Type | Balanced Armature | Dynamic |
| Drivers | 5 balanced armature drivers per side | 1 x 10mm coaxial dual-magnetic dynamic driver |
| Impedance | 15 ohms | 16 ohms |
| Connection | Wired | Wired |
| Sensitivity | - | 100 dB SPL/mW |
| Frequency Response | - | 10Hz - 40kHz |
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 HeartField Blanc from dl, gadgetrytech, jaytiss and silicagel; the qdc x FitEar Superior EX from aden, ekaudio, faxepremium and smirk, all via squig.link.
Related Headphone Comparisons
More worthwhile head-to-heads for HeartField Blanc: