Short answer: the Tanchjim Origin. It ranks #258 of 450 in-ear headphones by sound quality, rated 4.0/5, at $249.99; the OpenAudio Siren ranks #310, rated 3.9/5, at $249.99. With prices this close, go by the sound-quality ranking rather than the cost.
Buy the Tanchjim Origin. It is rated higher for sound quality than the OpenAudio Siren at the same price, so it is the default pick unless a specific strength of the other one matters more to you.
Want more options? Browse the full Headphones rankings.
Specifications Side By Side
| Tanchjim Origin | OpenAudio Siren | |
|---|---|---|
| Price | $249.99 | $249.99 |
| Ranked | #258 of 450 in In-Ear Headphones | #310 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 74 (median of 27 squig.link measurements, calibrated to AutoEQ) | 72 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.07 dB standard deviation | 2.06 dB standard deviation |
| Tonal Tilt | +0.26 (negative is warmer, positive brighter) | -0.44 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.1 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+1.9 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Hybrid (1 dynamic + 2 balanced armature) |
| Drivers | 1 x 10mm dynamic | 1 x 10mm dynamic + 2 x balanced armature |
| Impedance | 16 ohms | 10 ohms |
| Sensitivity | 126 dB/Vrms | 107 dB/mW |
| Frequency Response | 20Hz - 48kHz (Manufacturer specified) | 10Hz - 45kHz (Manufacturer specified) |
| Built-in Microphone | No | No |
Related Headphone Comparisons
More top alternatives to Tanchjim Origin:
- FiiO FH5s vs Tanchjim Origin
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- Tanchjim Origin vs DUNU DN142
- DUNU DN142 vs OpenAudio Siren
- OpenAudio Siren vs ZiiGaat Crescent
Prices on this page were last checked October 11, 2026 at 4:59 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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The Two Headphones In Full
Tanchjim Origin: $249.99 Amazon eBay
Full Tanchjim Origin review and specifications →
| Released | Jan 2024 (2 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 2.07 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 48kHz (Manufacturer specified) |
| Harman Preference Score | 74 (median of 27 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 16 ohms |
| Sensitivity | 126 dB/Vrms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.1 dB at 30 Hz) |
| Tonal Tilt | +0.26 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
OpenAudio Siren: $249.99 Amazon eBay
Full OpenAudio Siren review and specifications →
| Released | Sep 2024 (2 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 2.06 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 2 balanced armature) |
| Drivers | 1 x 10mm dynamic + 2 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 45kHz (Manufacturer specified) |
| Harman Preference Score | 72 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 10 ohms |
| Sensitivity | 107 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.9 dB at 30 Hz) |
| Tonal Tilt | -0.44 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons