Short answer: the Fearless Audio S8Z. Both are rated 4.0/5 for sound quality (#392 and #458 of 1291 in-ear headphones), and the Fearless Audio S8Z costs $589 against $599 for the Night Oblivion Butastur, so with nothing between them on sound quality, price settles it.
The case for the Fearless Audio S8Z: Eight balanced armatures earn a preference score of 74 in crinacle’s measurement, a solid result against the Harman target. Watch for: The Oriolus Isabellae and SoftEars RSV both rate higher at a similar price.
Why pick the Night Oblivion Butastur: A broadly balanced tuning with a preference score of 73 against the Harman target. Watch for: Treble about 4 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Buy the Fearless Audio S8Z. Both are rated the same for sound quality, and it costs $10 less than the Night Oblivion Butastur.
Still deciding? The full Headphones rankings cover every ranked option.
Eight balanced armatures earn a preference score of 74 in crinacle’s measurement, a solid result against the Harman target.
Linsoul $589.00 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
| Fearless Audio S8Z | Night Oblivion Butastur | |
|---|---|---|
| Price | $589.00 | $599 |
| Ranked | #392 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 | 74 (measured by crinacle, via AutoEQ) | 73 (median of 10 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.32 dB standard deviation | 1.87 dB standard deviation |
| Tonal Tilt | -0.01 (negative is warmer, positive brighter) | -0.49 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Driver Type | Balanced armature | Balanced Armature |
| Drivers | 8 x balanced armature | 10 x balanced armature |
| Impedance | 26 ohms | 30 ohms |
| Sensitivity | 113 dB/mW | 107 dB |
| Frequency Response | 15Hz - 20kHz (Manufacturer specified) | 10Hz - 20kHz (Manufacturer specified) |
| Built-in Microphone | No | - |
| Sub-bass Extension | - | Within 6 dB of target down to 20 Hz (-0.4 dB at 30 Hz) |
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