Short answer: the GoldPlanar GL-AMT16. Both are rated 3.4/5 for sound quality (#863 and #860 of 1369 in-ear headphones), and the GoldPlanar GL-AMT16 costs $1,499 against $1,620 for the Custom Art FIBAE 7 Unlimited, and with sound quality even, the cheaper one is the better buy.
The case for the Custom Art FIBAE 7 Unlimited: A broadly balanced tuning with a preference score of 67 against the Harman target. The catch: Treble about 2 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Why pick the GoldPlanar GL-AMT16: A broadly balanced tuning with a preference score of 67 against the Harman target. Watch for: About 3 dB less bass than the Harman target below 150 Hz, which can sound thin on pop, hip hop and electronic music.
Buy the GoldPlanar GL-AMT16. Both are rated the same for sound quality, and it costs $121 less than the Custom Art FIBAE 7 Unlimited.
Looking for alternatives? See the complete Headphones rankings.
A broadly balanced tuning with a preference score of 67 against the Harman target.
Custom Art $1,620.00 eBay
A broadly balanced tuning with a preference score of 67 against the Harman target.
Linsoul $1,499.00 eBayPrices on this page were last checked October 17, 2026 at 6:04 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
| Custom Art FIBAE 7 Unlimited | GoldPlanar GL-AMT16 | |
|---|---|---|
| Price | $1,620.00 | $1,499.00 |
| Ranked | #860 of 1369 in In-Ear Headphones | #863 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 67 (median of 4 squig.link measurements, calibrated to AutoEQ) | 67 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.49 dB standard deviation | 2.90 dB standard deviation |
| Tonal Tilt | -0.42 (negative is warmer, positive brighter) | -0.00 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.2 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-4.0 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Balanced Armature | AMT |
| Drivers | 7 x balanced armature (2 sub-low, 1 low-mid, 2 mid-high, 1 high, 1 super high) | 15.5mm folded diaphragm Air Motion Transformer (AMT) driver |
| Impedance | 12 ohms | 16 ohms |
| Sensitivity | 122 dB | 102 dB |
| Frequency Response | 10Hz - 21kHz | 15Hz - 50kHz |
| Weight | - | 0 lbs (14 g) |
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 Custom Art FIBAE 7 Unlimited from dl, harutohiroki, hbb, precog, superreview and vsg; the GoldPlanar GL-AMT16 from hu-fi, silicagel and tonedeafmonk, all via squig.link.
Related Headphone Comparisons
How Custom Art FIBAE 7 Unlimited compares with other leading options: