Short answer: the DITA Project M2. Both are rated 3.9/5 for sound quality (#523 and #542 of 1291 in-ear headphones), and the DITA Project M2 costs $329 against $349 for the ISN H60, so with nothing between them on sound quality, price settles it.
What the DITA Project M2 does well: A single 8.3 mm dynamic driver gives the Project M2 a warm, V-shaped sound in squig.link hobbyist measurements, with sub-bass flat to 30 Hz and bass about 3 dB above target for thick, punchy low notes. Watch for: A 7.4 dB dip near 6.9 kHz and a 6.3 dB peak near 11.5 kHz make the treble uneven, dulling some cymbal body while adding sparkle on top.
Why pick the ISN H60: A broadly balanced tuning with a preference score of 72 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 DITA Project M2. Both are rated the same for sound quality, and it costs $20 less than the ISN H60.
Still deciding? The full Headphones rankings cover every ranked option.
A single 8.3 mm dynamic driver gives the Project M2 a warm, V-shaped sound in squig.link hobbyist measurements, with sub-bass flat to 30 Hz and bass about 3 dB above target for thick, punchy low notes.
DITA Audio $329.00 eBay
A broadly balanced tuning with a preference score of 72 against the Harman target.
Amazon $349.00 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
| DITA Project M2 | ISN H60 | |
|---|---|---|
| Price | $329.00 | $349.00 |
| Ranked | #523 of 1291 in In-Ear Headphones | #542 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 72 (median of 6 squig.link measurements, calibrated to AutoEQ) | 72 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.13 dB standard deviation | 2.13 dB standard deviation |
| Tonal Tilt | -0.21 (negative is warmer, positive brighter) | -0.34 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.2 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.6 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Hybrid (4 dynamic + 6 balanced armature) |
| Drivers | 1 x 8.3mm dynamic | 4 x dynamic + 6 x balanced armature |
| Impedance | 37 ohms | - |
| Sensitivity | 111 dB @ 1kHz | - |
| Frequency Response | 20Hz - 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 DITA Project M2 from bloomaudio, elrics, faxepremium, jaytiss, silicagel and tonedeafmonk; the ISN H60 from avishai, dl, flare, theaudiostore and treblewellxtended, all via squig.link.
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