Short answer: the FiiO FD11. It ranks #908 of 1291 in-ear headphones by sound quality, rated 3.3/5, at $32.99; the SoundMAGIC E50C ranks #940, rated 3.2/5, at $32.99. The price gap is small enough that the sound-quality ranking should decide it.
The case for the FiiO FD11: Bass is lifted about 3.6 dB with extension to 20 Hz, giving kick drums and bass lines extra weight. The catch: Its 2.40 dB spread is less even than the best measured sets.
What the SoundMAGIC E50C does well: Bass from 60 to 200 Hz sits within 0.3 dB of target, so the low end is balanced rather than boomy. The tradeoff: Presence from 3 to 6 kHz is about 6.7 dB under target, with an 8.7 dB dip near 3.3 kHz, so vocals lose clarity and sound set back.
Buy the FiiO FD11. It is rated higher for sound quality than the SoundMAGIC E50C at the same price, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Headphones rankings cover every ranked option.
Bass is lifted about 3.6 dB with extension to 20 Hz, giving kick drums and bass lines extra weight.
Amazon $32.99 eBay
Bass from 60 to 200 Hz sits within 0.3 dB of target, so the low end is balanced rather than boomy.
Amazon $32.99 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
| FiiO FD11 | SoundMAGIC E50C | |
|---|---|---|
| Price | $32.99 | $32.99 |
| Ranked | #908 of 1291 in In-Ear Headphones | #940 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x 10mm dynamic |
| Impedance | 24 ohms | 51 ohms |
| Sensitivity | 111 dB/mW | 102 dB/mW |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) | 15Hz - 22kHz (Manufacturer specified) |
| Weight | 0 lbs (10 g) | 0 lbs (13 g) |
| Harman Preference Score | 65 (median of 13 squig.link measurements, calibrated to AutoEQ) | 64 (measured by oratory1990, via AutoEQ) |
| Deviation From Target | 2.40 dB standard deviation | 2.96 dB standard deviation |
| Tonal Tilt | -0.89 (negative is warmer, positive brighter) | -0.38 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.8 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-3.6 dB at 30 Hz) |
| Built-in Microphone | - | Yes |
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