Short answer: the 7Hz Divine. Both are rated 4.2/5 for sound quality (#249 and #288 of 1291 in-ear headphones), and the 7Hz Divine costs $159 against $179 for the Tanchjim Kara, with sound quality a draw, the lower price decides it.
The case for the 7Hz Divine: The median of 18 hobbyist measurements gives it a very good Harman preference score of 77 with a 1.66 dB spread, and its mids sit within about 0.6 dB of target, so vocals and instruments sound natural. The catch: Its 1.66 dB spread is less even than the best measured sets.
The case for the Tanchjim Kara: The median of 23 hobbyist measurements tracks the Harman target closely, with a 1.93 dB spread and lows, mids and upper mids all within about 2 dB, so vocals and instruments sound natural and even. The tradeoff: The 3 to 6 kHz presence region sits about 3 dB low, which softens vocal bite and attack a little.
Buy the 7Hz Divine. Both are rated the same for sound quality, and it costs $20 less than the Tanchjim Kara.
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The median of 18 hobbyist measurements gives it a very good Harman preference score of 77 with a 1.66 dB spread, and its mids sit within about 0.6 dB of target, so vocals and instruments sound natural.
Amazon $159.00 eBay
The median of 23 hobbyist measurements tracks the Harman target closely, with a 1.93 dB spread and lows, mids and upper mids all within about 2 dB, so vocals and instruments sound natural and even.
Amazon $179.00 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.
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Specifications Side By Side
| 7Hz Divine | Tanchjim Kara | |
|---|---|---|
| Price | $159.00 | $179.00 |
| Ranked | #249 of 1291 in In-Ear Headphones | #288 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 77 (median of 18 squig.link measurements, calibrated to AutoEQ) | 76 (median of 23 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.66 dB standard deviation | 1.93 dB standard deviation |
| Tonal Tilt | -0.43 (negative is warmer, positive brighter) | -0.11 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.7 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.6 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Planar magnetic | Hybrid |
| Drivers | 1 x 14.5mm planar magnetic | 1 x dynamic (PEEK+PU diaphragm) + 4 x balanced armature |
| Impedance | 18 ohms | 27 ohms |
| Sensitivity | 107 dB/V | 115 dB/Vrms |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) | 7Hz - 40kHz (Manufacturer specified) |
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 7Hz Divine from aden, aftersound, atechreviews, audioamigo, avishai, bassaudio, csi-zone, dl, elrics, fernandagunsan, hbb, jaytiss, joycesreview, lestat, practiphile, soundcheck39, soundignity and superreview; the Tanchjim Kara from aftersound, ankramutt, arn, atechreviews, audioamigo, cqtek, csi-zone, dchpgall, dl, gadgetrytech, hu-fi, ianfann, iemocean, jaytiss, koi, kuping-sensi, musicafe, recode, soundcheck39, soundignity, superreview, tanchjim and timmyv, all via squig.link.
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