Short answer: the FiiO JT3, though neither ranks well in its class. It ranks #412 of 481 over-ear headphones by sound quality, rated 2.6/5, at $69.99; the Philips Fidelio M2L ranks #427, rated 2.5/5, and costs $74.99, which makes this an easy call rather than a real tradeoff. Both are rated below 3.0/5 among the 481 over-ear headphones; for better sound, the Superlux HD 668B ranks #29 at $49.99.
Why pick the FiiO JT3: An inexpensive open-back headphone with a large 50mm dynamic driver and a built-in microphone, so it doubles for calls and gaming chat. The catch: In 2 hobbyist measurements on squig.link it scores only 50 for preference, with bass nearly 5 dB and low mids about 3 dB over target, which clouds vocals and makes the sound heavy.
The case for the Philips Fidelio M2L: Lower mids sit within about 1 dB of target, keeping voices and guitars natural. The tradeoff: Presence sits about 3.1 dB low with a 14.6 dB dip near 10.5 kHz, so vocals and instruments lose some bite.
Buy the FiiO JT3. It is rated higher for sound quality than the Philips Fidelio M2L and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
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An inexpensive open-back headphone with a large 50mm dynamic driver and a built-in microphone, so it doubles for calls and gaming chat.
Amazon $69.99 eBay
Lower mids sit within about 1 dB of target, keeping voices and guitars natural.
Amazon $74.99 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 JT3 | Philips Fidelio M2L | |
|---|---|---|
| Price | $69.99 | $74.99 |
| Ranked | #412 of 481 in Over-Ear Headphones | #427 of 481 in Over-Ear Headphones |
| Form Factor | Over-ear | Over-ear |
| Harman Preference Score | 50 (median of 2 squig.link measurements, calibrated to AutoEQ) | 47 (measured by oratory1990, via AutoEQ) |
| Deviation From Target | 3.40 dB standard deviation | 3.58 dB standard deviation |
| Tonal Tilt | -1.39 (negative is warmer, positive brighter) | -1.43 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.1 dB at 30 Hz) | Falls 6 dB below target at 45 Hz (-10.5 dB at 30 Hz) |
| Connection | Wired | Wired |
| Back | Open | Closed |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 50mm dynamic | 1 x 40mm dynamic |
| Impedance | 80 ohms | 16 ohms |
| Sensitivity | 97 dB/mW | - |
| Weight | 0.7 lbs (330 g) | - |
| Frequency Response | 10Hz - 35kHz (Manufacturer specified) | 7Hz - 25kHz |
| Built-in Microphone | Yes | - |
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