The IOAudio Sogno ranks #3 out of 297 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: IOAudio
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#3 IOAudio Sogno: $399.00 Amazon eBay
Pros: Its preference score of 88, taken from the median of six hobbyist measurements, comes with an average deviation of only about 0.8 dB, one of the most even responses among in-ears. Every broad band from sub-bass to air lands within about 1.3 dB of the Harman target, so bass, vocals and treble all sit in natural proportion. A coaxial dual dynamic woofer with six balanced armatures at 126.5 dB/Vrms plays loudly from a phone. It is rated above the Moondrop Harmon and Tanchjim Soda at a similar price.
Cons: A 3.3 dB dip near 6.5 kHz next to a 3.6 dB peak near 8.1 kHz can make some cymbals and sibilants sound slightly uneven. Only six samples were measured, so unit to unit variation is less well established, and the sensitivity is high enough that noisy sources may hiss. It has no built-in microphone.
| Back | Closed |
|---|---|
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 0.84 dB standard deviation |
| Driver Type | Hybrid (2 dynamic + 6 balanced armature) |
| Drivers | 1 x 10mm + 6mm coaxial dual dynamic + 6 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 30kHz (Manufacturer specified) |
| Harman Preference Score | 88 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 12.8 ohms |
| Sensitivity | 126.5 dB/Vrms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.2 dB at 30 Hz) |
| Tonal Tilt | -0.07 (negative is warmer, positive brighter) |
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