Short answer: the Canpur CP54E. It ranks #930 of 1291 in-ear headphones by sound quality, rated 3.3/5, at $1,999; the SoftEars Cerberus ranks #941, rated 3.2/5, and costs $2,099.99, which makes this an easy call rather than a real tradeoff.
What the Canpur CP54E does well: A broadly balanced tuning with a preference score of 65 against the Harman target. The catch: Treble about 2 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Why pick the SoftEars Cerberus: A seven driver hybrid with a dynamic woofer, four balanced armatures and two electrostatic tweeters, tuned with a warm, relaxed balance. The catch: Treble runs about 4 to 6 dB below target from 3 to 16 kHz, with a 9.8 dB dip near 6.1 kHz, so cymbals, string texture and vocal consonants sound dim and distant.
Buy the Canpur CP54E. It is rated higher for sound quality than the SoftEars Cerberus and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Headphones rankings.
A broadly balanced tuning with a preference score of 65 against the Harman target.
MusicTeck $1,999 eBay
A seven driver hybrid with a dynamic woofer, four balanced armatures and two electrostatic tweeters, tuned with a warm, relaxed balance.
HiFiGo $2,099.99 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
| Canpur CP54E | SoftEars Cerberus | |
|---|---|---|
| Price | $1,999 | $2,099.99 |
| Ranked | #930 of 1291 in In-Ear Headphones | #941 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 65 (median of 3 squig.link measurements, calibrated to AutoEQ) | 64 (measured by crinacle, via AutoEQ) |
| Deviation From Target | 2.48 dB standard deviation | 2.89 dB standard deviation |
| Tonal Tilt | -0.86 (negative is warmer, positive brighter) | -0.11 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.1 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-3.4 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (Balanced Armature + Electrostatic) | Hybrid (1 dynamic + 4 balanced armature + 2 electrostatic) |
| Drivers | 9 drivers per side (5 Balanced Armature + 4 Sonion Electrostatic) | 1 x dynamic + 4 x balanced armature + 2 x electrostatic |
| Impedance | 10 ohms | 5 ohms |
| Sensitivity | 100 dB SPL/mW | 104 dB/100mV |
| Frequency Response | 5Hz - 45kHz | 10Hz - 80kHz (Manufacturer specified) |
| Weight | Not 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 Canpur CP54E from dchpgall, kr0mka and tgx78; the SoftEars Cerberus from animagus, atechreviews, audioamigo, bukanaudiophile, koi, precog and pw, all via squig.link.
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