Short answer: the SoundMAGIC E50C. It ranks #940 of 1291 in-ear headphones by sound quality, rated 3.2/5, at $32.99; the Sony IER-EX15C ranks #981, rated 3.1/5, at $28. Close enough in price that the sound-quality gap is the deciding factor.
Why pick the SoundMAGIC E50C: 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.
The case for the Sony IER-EX15C: At 0 lbs (3 g) per earpiece it is very light, and the built-in microphone makes it handy for calls. Watch for: Sub-bass rolls off about 2.8 dB below target under 60 Hz, so deep synth bass and rumble are subdued.
Buy the SoundMAGIC E50C. It is rated higher for sound quality, and saving $4.99 with the Sony IER-EX15C does not make up for the sound-quality gap.
Still deciding? The full Headphones rankings cover every ranked option.
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 eBay
At 3 g per earpiece it is very light, and the built-in microphone makes it handy for calls.
Amazon $28.00 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
| SoundMAGIC E50C | Sony IER-EX15C | |
|---|---|---|
| Price | $32.99 | $28.00 |
| Ranked | #940 of 1291 in In-Ear Headphones | #981 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Harman Preference Score | 64 (measured by oratory1990, via AutoEQ) | 62 (median of 2 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.96 dB standard deviation | 2.85 dB standard deviation |
| Tonal Tilt | -0.38 (negative is warmer, positive brighter) | -0.43 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.6 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-5.0 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | - |
| Drivers | 1 x 10mm dynamic | 1 x 5mm |
| Impedance | 51 ohms | - |
| Sensitivity | 102 dB/mW | - |
| Weight | 0 lbs (13 g) | 0 lbs (3 g) per earpiece |
| Frequency Response | 15Hz - 22kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| Back | Closed | Closed |
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