Short answer: a tie on sound quality. Both are rated 4.0/5 (#452 and #412 of 1291 in-ear headphones) at nearly the same price ($249.99 vs $249), so choose on features and fit.
The case for the OpenAudio Siren: The median of 4 hobbyist measurements gives it a solid Harman preference score of 73 with a 1.94 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural. The catch: A 6 dB peak near 8.2 kHz can make cymbals and sibilance sound sharp.
Why pick the ZiiGaat Arete: The median of 19 hobbyist measurements gives it a solid Harman preference score of 74 with a 1.87 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural. The tradeoff: Presence sits about 3.9 dB low with a 7.4 dB dip near 6.5 kHz, so vocals and instruments lose some bite.
Buy the OpenAudio Siren or the ZiiGaat Arete on features: they are rated the same for sound quality at close to the same price.
Want more options? Browse the full Headphones rankings.
The median of 4 hobbyist measurements gives it a solid Harman preference score of 73 with a 1.94 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural.
Amazon $249.99 eBay
The median of 19 hobbyist measurements gives it a solid Harman preference score of 74 with a 1.87 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural.
Amazon $249.00 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| OpenAudio Siren | ZiiGaat Arete | |
|---|---|---|
| Price | $249.99 | $249.00 |
| Ranked | #452 of 1291 in In-Ear Headphones | #412 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 73 (median of 4 squig.link measurements, calibrated to AutoEQ) | 74 (median of 19 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.94 dB standard deviation | 1.87 dB standard deviation |
| Tonal Tilt | -0.44 (negative is warmer, positive brighter) | -0.64 (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 (+0.0 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 2 balanced armature) | Hybrid (1 dynamic + 4 balanced armature) |
| Drivers | 1 x 10mm dynamic + 2 x balanced armature | 1 x 10mm dynamic + 4 x balanced armature |
| Impedance | 10 ohms | 9 ohms |
| Sensitivity | 107 dB/mW | 108 dB |
| Frequency Response | 10Hz - 45kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| Built-in Microphone | No | 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 OpenAudio Siren from atechreviews, hu-fi, jaytiss and superreview; the ZiiGaat Arete from aden, aftersound, atechreviews, audioamigo, bassaudio, bloomaudio, dl, gadgetrytech, hbb, iemocean, jaytiss, joycesreview, koi, practiphile, silicagel, sl0the, soundcheck39, tonedeafmonk and vortexreviews, all via squig.link.
Related Headphone Comparisons
More worthwhile head-to-heads for ZiiGaat Arete: