Short answer: the Muse HiFi Power on measured sound quality, the ISN Audio Neo 3 on price. The Muse HiFi Power ranks #973 of 1369 in-ear headphones, rated 3.2/5, at $199. The ISN Audio Neo 3 ranks #1054, rated 3.1/5, at $99, $100 cheaper.
Why pick the Muse HiFi Power: A 14.5mm planar magnetic driver with about 2.3 dB of extra bass and sub-bass that stays within 6 dB of target down to 20 Hz, for a full, warm low end. The catch: Squig.link measurements show a 12.7 dB peak near 11.9 kHz on top of a 6.5 dB dip near 6.5 kHz, so the lower treble sounds dim while the very top can add a hissy sheen.
The case for the ISN Audio Neo 3: 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 2 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Buy the Muse HiFi Power when sound quality outweighs the price for you, and the ISN Audio Neo 3 when the price outweighs sound quality instead.
Want more options? Browse the full Headphones rankings.
A 14.5mm planar magnetic driver with about 2.3 dB of extra bass and sub-bass that stays within 6 dB of target down to 20 Hz, for a full, warm low end.
Audio46 $199.00 eBayA published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap.
Penon 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
| Muse HiFi Power | ISN Audio Neo 3 | |
|---|---|---|
| Price | $199.00 | 99.00 |
| Ranked | #973 of 1369 in In-Ear Headphones | #1054 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 64 (measured by crinacle, via AutoEQ) | 63 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.99 dB standard deviation | 2.70 dB standard deviation |
| Tonal Tilt | -0.51 (negative is warmer, positive brighter) | -0.70 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Driver Type | Planar magnetic | Hybrid (2 Dynamic + 1 Planar) |
| Drivers | 1 x 14.5mm planar magnetic | 2 x 6mm dynamic drivers (1 low, 1 mid) + 1 x 5.8mm micro-planar driver (high) |
| Impedance | 32 ohms | 15 ohms |
| Sensitivity | 106 dB/mW | 105 dB |
| Frequency Response | 10Hz - 40kHz (Manufacturer specified) | 10Hz - 20kHz |
| Built-in Microphone | No | - |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.6 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.9 dB at 30 Hz) |
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 Muse HiFi Power from aftersound, dchpgall, hbb, musicafe and vsg; the ISN Audio Neo 3 from avishai, flare, pw, soundcheck39, theaudiostore and treblewellxtended, all via squig.link.
Related Headphone Comparisons
How Muse HiFi Power compares with other leading options:
