Short answer: the Fearless Audio S8Pro. It ranks #794 of 1369 in-ear headphones by sound quality, rated 3.5/5, at $489; the GoldPlanar GL-AMT16 ranks #863, rated 3.4/5, and costs $1,499, which makes this an easy call rather than a real tradeoff.
The case for the Fearless Audio S8Pro: Bass runs about 5 dB above target from 60 to 200 Hz in HypetheSonics’ measurement, giving a thick, punchy low end that suits listeners who like a V-shaped or warm sound. Watch for: Treble from 6 to 10 kHz sits nearly 6 dB above target with an 8.5 dB peak near 8.6 kHz, which can make cymbals and sibilance sharp and fatiguing at higher volume.
What the GoldPlanar GL-AMT16 does well: A broadly balanced tuning with a preference score of 67 against the Harman target. The tradeoff: 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 Fearless Audio S8Pro. It is rated higher for sound quality than the GoldPlanar GL-AMT16 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Headphones rankings.
Bass runs about 5 dB above target from 60 to 200 Hz in HypetheSonics’ measurement, giving a thick, punchy low end that suits listeners who like a V-shaped or warm sound.
Linsoul $489.00 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
| Fearless Audio S8Pro | GoldPlanar GL-AMT16 | |
|---|---|---|
| Price | $489.00 | $1,499.00 |
| Ranked | #794 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 | 68 (measured by HypetheSonics, via AutoEQ) | 67 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.72 dB standard deviation | 2.90 dB standard deviation |
| Tonal Tilt | -0.08 (negative is warmer, positive brighter) | -0.00 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.0 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 | 8 x balanced armature | 15.5mm folded diaphragm Air Motion Transformer (AMT) driver |
| Impedance | 15 ohms | 16 ohms |
| Sensitivity | 113 dB/mW | 102 dB |
| Frequency Response | 15Hz - 20kHz (Manufacturer specified) | 15Hz - 50kHz |
| Built-in Microphone | No | - |
| Weight | - | 0 lbs (14 g) |
Related Headphone Comparisons
How Fearless Audio S8Pro compares with other leading options: