Short answer: the 7Hz Timeless II. Both are rated 3.9/5 for sound quality (#504 and #518 of 1291 in-ear headphones), and the 7Hz Timeless II costs $229 against $259 for the TANGZU Wu Legend, so with nothing between them on sound quality, price settles it.
What the 7Hz Timeless II does well: The median of 19 hobbyist measurements gives it a solid Harman preference score of 72 with a 1.92 dB spread, and its mids sit within about 0.6 dB of target, so vocals and instruments sound natural. Watch for: Presence sits about 3.6 dB low with a 5 dB dip near 3.5 kHz, so vocals and instruments lose some bite.
Why pick the TANGZU Wu Legend: Dual planar magnetic drivers (14.2 mm and 6 mm) give the Wu Legend a warm, bass-leaning tuning with bass and midrange within a decibel of target in squig.link hobbyist measurements. The tradeoff: A 6.3 dB dip near 3.75 kHz pulls the presence region about 5 dB under target, so vocals and guitars sound distant, while air jumps about 8 dB above target with a 7.4 dB peak near 10.9 kHz that can make treble sound glassy.
Buy the 7Hz Timeless II. Both are rated the same for sound quality, and it costs $30 less than the TANGZU Wu Legend.
Still deciding? The full Headphones rankings cover every ranked option.
The median of 19 hobbyist measurements gives it a solid Harman preference score of 72 with a 1.92 dB spread, and its mids sit within about 0.6 dB of target, so vocals and instruments sound natural.
Amazon $229.00 eBay
Dual planar magnetic drivers (14.2 mm and 6 mm) give the Wu Legend a warm, bass-leaning tuning with bass and midrange within a decibel of target in squig.link hobbyist measurements.
Amazon $259.00 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
| 7Hz Timeless II | TANGZU Wu Legend | |
|---|---|---|
| Price | $229.00 | $259.00 |
| Ranked | #504 of 1291 in In-Ear Headphones | #518 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 72 (median of 19 squig.link measurements, calibrated to AutoEQ) | 72 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.92 dB standard deviation | 2.23 dB standard deviation |
| Tonal Tilt | -0.59 (negative is warmer, positive brighter) | -0.22 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.0 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Planar magnetic | Planar magnetic |
| Drivers | 1 x 14.5mm planar magnetic | 1 x 14.2mm planar magnetic + 1 x 6mm planar magnetic |
| Impedance | 15.2 ohms | 12.5 ohms |
| Sensitivity | 108 dB/V | 106.5 dB |
| Weight | 0 lbs (5 g) per earbud | - |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| 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 7Hz Timeless II from aden, atechreviews, audioamigo, avishai, csi-zone, dl, eliseaudio, hbb, hu-fi, jaytiss, koi, pw, silicagel, soundcheck39, soundignity, superreview, theaudiostore, treblewellxtended and zerostresslevel; the TANGZU Wu Legend from aden, lown-fi and treblewellxtended, all via squig.link.
Related Headphone Comparisons
How 7Hz Timeless II compares with other leading options: