Short answer: the Symphonium Zenith. Both are rated 4.2/5 for sound quality (#301 and #267 of 1291 in-ear headphones), and the Symphonium Zenith costs $1,799 against $2,299 for the Shuoer Cadenza 12, with sound quality a draw, the lower price decides it.
What the Shuoer Cadenza 12 does well: A preference score of 76 with deep, well extended bass, only 0.5 dB short of target at 30 Hz from its 10 mm dynamic woofer. Watch for: An 8 dB dip near 5 kHz pulls the presence band 5.5 dB below target, so vocals, snare and guitar attack sound recessed and soft.
What the Symphonium Zenith does well: A four balanced armature flagship whose bass sits right on the Harman target, with full sub-bass to 20 Hz unusual for an all-BA IEM (score 76). The tradeoff: Treble sits about 3.6 dB below target, so it sounds relaxed and less detailed up top.
Buy the Symphonium Zenith. Both are rated the same for sound quality, and it costs $500 less than the Shuoer Cadenza 12.
Still deciding? The full Headphones rankings cover every ranked option.
A preference score of 76 with deep, well extended bass, only 0.5 dB short of target at 30 Hz from its 10 mm dynamic woofer.
Linsoul $2,299.00 eBay
A four balanced armature flagship whose bass sits right on the Harman target, with full sub-bass to 20 Hz unusual for an all-BA IEM (score 76).
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Specifications Side By Side
| Shuoer Cadenza 12 | Symphonium Zenith | |
|---|---|---|
| Price | $2,299.00 | $1,799 |
| Ranked | #267 of 1291 in In-Ear Headphones | #301 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 76 (measured by HypetheSonics, via AutoEQ) | 76 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.92 dB standard deviation | 1.64 dB standard deviation |
| Tonal Tilt | -0.43 (negative is warmer, positive brighter) | -0.53 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.5 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.4 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 11 balanced armature) | Balanced Armature |
| Drivers | 1 x 10mm dynamic + 11 x balanced armature | 4 x balanced armature (TrueX 4-way crossover) |
| Impedance | 16 ohms | 6.1 ohms |
| Sensitivity | 110 dB/mW | 108 dB/Vrms |
| Frequency Response | 20Hz - 30kHz (Manufacturer specified) | 10Hz - 20kHz |
| 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 Shuoer Cadenza 12 from aden, aftersound, audioamigo, dl, eliseaudio, harutohiroki, hbb, hobbytalk, jaytiss, kr0mka, listener, obodio, practiphile, precog, smirk, soundignity, superreview, therollo9, timmyv, treblewellxtended and vsg; the Symphonium Zenith from aden, aftersound and precog, all via squig.link.
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