Short answer: the Hisenior Mega5P. Both are rated 3.6/5 for sound quality (#749 and #777 of 1369 in-ear headphones), and the Hisenior Mega5P costs $299 against $3,299 for the Elysian Acoustic Labs Annihilator, and with sound quality even, the cheaper one is the better buy.
What the Elysian Acoustic Labs Annihilator does well: A broadly balanced tuning with a preference score of 68 against the Harman target. The tradeoff: An uneven response, 2.1 dB standard deviation from target.
What the Hisenior Mega5P does well: A broadly balanced tuning with a preference score of 69 against the Harman target. Watch for: Treble about 5 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Buy the Hisenior Mega5P. Both are rated the same for sound quality, and it costs $3,000 less than the Elysian Acoustic Labs Annihilator.
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A broadly balanced tuning with a preference score of 68 against the Harman target.
Bloom Audio $3,299.00 eBay
A broadly balanced tuning with a preference score of 69 against the Harman target.
Audio Concierge $299 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.
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Specifications Side By Side
| Elysian Acoustic Labs Annihilator | Hisenior Mega5P | |
|---|---|---|
| Price | $3,299.00 | $299 |
| Ranked | #777 of 1369 in In-Ear Headphones | #749 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 68 (median of 11 squig.link measurements, calibrated to AutoEQ) | 69 (median of 9 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.13 dB standard deviation | 2.33 dB standard deviation |
| Tonal Tilt | -0.84 (negative is warmer, positive brighter) | -0.54 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.2 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-1.6 dB at 30 Hz) |
| Driver Type | Tribrid | Hybrid |
| Drivers | 7 drivers (1 dynamic driver + 4 balanced armatures + 2 electrostatic drivers) | 1 Dynamic, 4 Balanced Armature |
| Frequency Response | 20Hz - 45kHz | - |
| Connection | Wired | Wired (3.5mm) |
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 Elysian Acoustic Labs Annihilator from animagus, atechreviews, dchpgall, dl, elrics, jaytiss, precog, recode, soundignity, superreview and zerostresslevel; the Hisenior Mega5P from audioamigo, eliseaudio, iemworld, jaytiss, lown-fi, practiphile, therollo9, timmyv, tonedeafmonk and vortexreviews, all via squig.link.
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