Short answer: the Oriolus Isabellae. It ranks #321 of 1291 in-ear headphones by sound quality, rated 4.1/5, at $600; the Night Oblivion Butastur ranks #458, rated 4.0/5, at $599. The price gap is small enough that the sound-quality ranking should decide it.
Why pick the Oriolus Isabellae: A single 9.8mm dynamic driver earns a preference score of 75 from crinacle, and squig.link measurements show a 3.2 dB upper bass lift that gives a warm, punchy foundation without bloating the mids. The tradeoff: Across hobbyist measurements a 7 dB peak near 11.2 kHz adds sparkle that can tip into sibilance or splash on bright recordings.
What the Night Oblivion Butastur does well: A broadly balanced tuning with a preference score of 73 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.
Buy the Oriolus Isabellae. It is rated higher for sound quality, and the $1 saving on the Night Oblivion Butastur is not enough to make up the difference.
Still deciding? The full Headphones rankings cover every ranked option.
A single 9.8mm dynamic driver earns a preference score of 75 from crinacle, and squig.link measurements show a 3.2 dB upper bass lift that gives a warm, punchy foundation without bloating the mids.
Shenzhenaudio $600.00 eBay
A broadly balanced tuning with a preference score of 73 against the Harman target.
Penon Audio $599 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.
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Specifications Side By Side
| Oriolus Isabellae | Night Oblivion Butastur | |
|---|---|---|
| Price | $600.00 | $599 |
| Ranked | #321 of 1291 in In-Ear Headphones | #458 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 75 (measured by crinacle, via AutoEQ) | 73 (median of 10 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.14 dB standard deviation | 1.87 dB standard deviation |
| Tonal Tilt | +0.11 (negative is warmer, positive brighter) | -0.49 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.9 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.4 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Balanced Armature |
| Drivers | 1 x 9.8mm dynamic | 10 x balanced armature |
| Impedance | 30 ohms | 30 ohms |
| Sensitivity | 113 dB | 107 dB |
| Frequency Response | 10Hz - 40kHz (Manufacturer specified) | 10Hz - 20kHz (Manufacturer specified) |
| Built-in Microphone | No | - |
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 Oriolus Isabellae from aden, jaytiss, lestat, mmagtech, musicafe, precog, pw and sl0the; the Night Oblivion Butastur from breampike, ducbloke, faxepremium, flare, iemocean, kr0mka, mmagtech, precog, superreview and zerostresslevel, all via squig.link.
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