Short answer: the 7th Acoustics Supernova. It ranks #228 of 1291 in-ear headphones by sound quality, rated 4.3/5, at $849; the BGVP Phantom ranks #300, rated 4.2/5, and costs $899, which makes this an easy call rather than a real tradeoff.
The case for the 7th Acoustics Supernova: The median of 32 hobbyist measurements gives it a very good Harman preference score of 77 with a 1.68 dB spread, and its mids sit within about 0.8 dB of target, so vocals and instruments sound natural. The catch: Presence sits about 4.1 dB low with a 4.8 dB dip near 3.6 kHz, so vocals and instruments lose some bite.
The case for the BGVP Phantom: An eight-driver in-ear flagship that measures close to the Harman target, with a 76 score and full sub-bass to 20 Hz. The catch: Expensive at about $899, and sold mainly through Shenzhenaudio.
Buy the 7th Acoustics Supernova. It is rated higher for sound quality than the BGVP Phantom and costs less, which makes it the one to get unless you need something the other one does better.
Still deciding? The full Headphones rankings cover every ranked option.
The median of 32 hobbyist measurements gives it a very good Harman preference score of 77 with a 1.68 dB spread, and its mids sit within about 0.8 dB of target, so vocals and instruments sound natural.
Bloom Audio $849.00 eBay
An eight-driver in-ear flagship that measures close to the Harman target, with a 76 score and full sub-bass to 20 Hz.
Shenzhenaudio $899.00 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
| 7th Acoustics Supernova | BGVP Phantom | |
|---|---|---|
| Price | $849.00 | $899.00 |
| Ranked | #228 of 1291 in In-Ear Headphones | #300 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 77 (median of 32 squig.link measurements, calibrated to AutoEQ) | 76 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.68 dB standard deviation | 1.66 dB standard deviation |
| Tonal Tilt | -0.28 (negative is warmer, positive brighter) | -0.26 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.6 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+0.2 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Balanced armature | Quadbrid |
| Drivers | 6 x balanced armature | 2 x dynamic + 2 x Knowles balanced armature + 2 x Sonion electrostatic + 2 x bone conduction |
| Impedance | 15 ohms | 12 ohms |
| Sensitivity | - | 107 dB/mW |
| Frequency Response | - | 10Hz - 40kHz |
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 7th Acoustics Supernova from adri-n, aftersound, animagus, aquaphobic, bassaudio, bloomaudio, dentreviews, dvewlsh, eliseaudio, freeryder05, gadgetgenerations, hadoe, hbb, ianfann, jaytiss, lestat, loomynarty, lown-fi, mmagtech, nymz, obodio, practiphile, precog, ragnarok, recode, sl0the, smirk, soundignity, superreview, tedthepraimortis, timmyv and treblewellxtended; the BGVP Phantom from animagus, ducbloke, isaiahse, sl0the, superreview and timmyv, all via squig.link.
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