Short answer: the ThieAudio Prestige LTD. It ranks #323 of 1291 in-ear headphones by sound quality, rated 4.1/5, at $1,299; the Hercules Audio Noah ranks #441, rated 4.0/5, and costs $1,400, so there is not much of a tradeoff to weigh.
Why pick the ThieAudio Prestige LTD: The median of 13 hobbyist measurements gives it a very good Harman preference score of 75 with a 1.63 dB spread, and its mids sit within about 1.2 dB of target, so vocals and instruments sound natural. The catch: Presence sits about 4 dB low with a 6.1 dB dip near 4.4 kHz, so vocals and instruments lose some bite.
What the Hercules Audio Noah does well: A broadly balanced tuning with a preference score of 74 against the Harman target. The tradeoff: Treble about 4 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Buy the ThieAudio Prestige LTD. It is rated higher for sound quality than the Hercules Audio Noah and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Headphones rankings.
The median of 13 hobbyist measurements gives it a very good Harman preference score of 75 with a 1.63 dB spread, and its mids sit within about 1.2 dB of target, so vocals and instruments sound natural.
Linsoul $1,299.00 eBay
A broadly balanced tuning with a preference score of 74 against the Harman target.
Zeppelin & Co $1,400 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
| ThieAudio Prestige LTD | Hercules Audio Noah | |
|---|---|---|
| Price | $1,299.00 | $1,400 |
| Ranked | #323 of 1291 in In-Ear Headphones | #441 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 75 (median of 13 squig.link measurements, calibrated to AutoEQ) | 74 (median of 9 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.63 dB standard deviation | 1.74 dB standard deviation |
| Tonal Tilt | -0.59 (negative is warmer, positive brighter) | -0.69 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.5 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+1.2 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 4 balanced armature + 4 electrostatic) | Tribrid (1 dynamic + 4 balanced armature + 2 electrostatic) |
| Drivers | 1 x 10mm dynamic + 4 x balanced armature + 4 x electrostatic | 1 x dynamic + 4 x balanced armature + 2 x electrostatic |
| Impedance | 22 ohms | - |
| Sensitivity | 99 dB | - |
| Frequency Response | 20Hz - 80kHz (Manufacturer specified) | - |
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 ThieAudio Prestige LTD from aden, audioamigo, bakkwatan, boizoff, ducbloke, eliseaudio, hbb, jaytiss, lown-fi, mmagtech, sl0the, superreview and timmyv; the Hercules Audio Noah from aden, audioamigo, boizoff, dl, eliseaudio, iemocean, jaytiss, kazi, koi, pw and superreview, all via squig.link.
Related Headphone Comparisons
How ThieAudio Prestige LTD compares with other leading options: