Short answer: the ZiiGaat Cincotres. It ranks #683 of 1291 in-ear headphones by sound quality, rated 3.7/5, at $242.10; the 7Hz Eternal ranks #691, rated 3.6/5, and costs $249, so there is little reason to consider the other one.
What the ZiiGaat Cincotres does well: The median of 14 hobbyist measurements gives it a solid Harman preference score of 69 with a 2.26 dB spread, and its mids sit within about 1.2 dB of target, so vocals and instruments sound natural. The tradeoff: Presence sits about 3.9 dB low with a 6.5 dB dip near 6.1 kHz, so vocals and instruments lose some bite.
Why pick the 7Hz Eternal: Crinacle’s measurement gives it a preference score of 69, and squig.link measurements show bass, mids and upper mids all within about 1 dB of target, so voices and instruments sound natural. The catch: Treble above 6 kHz drops 3 to 4 dB below target with an 8.7 dB dip near 10.6 kHz, so cymbals lack sparkle and detail sounds dim.
Buy the ZiiGaat Cincotres. It is rated higher for sound quality than the 7Hz Eternal and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Headphones rankings.
The median of 14 hobbyist measurements gives it a solid Harman preference score of 69 with a 2.26 dB spread, and its mids sit within about 1.2 dB of target, so vocals and instruments sound natural.
Amazon $242.10 eBay
Crinacle’s measurement gives it a preference score of 69, and squig.link measurements show bass, mids and upper mids all within about 1 dB of target, so voices and instruments sound natural.
Linsoul $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
| ZiiGaat Cincotres | 7Hz Eternal | |
|---|---|---|
| Price | $242.10 | $249.00 |
| Ranked | #683 of 1291 in In-Ear Headphones | #691 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Hybrid | Dynamic |
| Drivers | 2 x 10mm dynamic + 3 x balanced armature | 1 x 14.5mm dynamic |
| Impedance | 11 ohms | 30 ohms |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 10Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 69 (median of 14 squig.link measurements, calibrated to AutoEQ) | 69 (measured by crinacle, via AutoEQ) |
| Deviation From Target | 2.26 dB standard deviation | 2.63 dB standard deviation |
| Tonal Tilt | -0.56 (negative is warmer, positive brighter) | -0.36 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.2 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.0 dB at 30 Hz) |
| Sensitivity | - | 109 dB/1kHz |
| Weight | - | 0 lbs (6 g) per earbud |
| 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 ZiiGaat Cincotres from aden, audioamigo, bloomaudio, boizoff, breampike, harpo, iemocean, jaytiss, koi, loomynarty, mmagtech, sl0the, soundcheck39 and timmyv; the 7Hz Eternal from audioamigo, bedrock, dchpgall, dl, harpo, hbb, iemworld, musicafe, precog, vortexreviews and vsg, all via squig.link.
Related Headphone Comparisons
How ZiiGaat Cincotres compares with other leading options: