Updated October 2026 · prices checked Oct 10, 2026. Amp specs are manufacturer ratings unless noted.
Covers the M50x's 0.7 V requirement cleanly with a little headroom. For many owners, the only upgrade needed.
One-box DAC/amp with about 15 dB of headroom on the M50x and plenty left for a future HD 600 or planar.
ATH-M50x Overview
The Audio-Technica ATH-M50x is one of the most popular closed-back headphones on the market, used by studio engineers, DJs and casual listeners. Audio-Technica rates it at 38Ω and 99 dB/mW. That combination makes it one of the easiest headphones on this site to drive.
The honest answer on amplification: the M50x does not need an amplifier. What it can benefit from is a cleaner source than a noisy laptop jack, or a source with lower output impedance than some motherboards and console controllers have.
The Power Math
- Sensitivity: 99 dB/mW at 38Ω, which is about 113 dB/V.
- Voltage for 110 dB peaks: 0.69 V RMS. Current: 18 mA. Power: 13 mW.
- With 6 dB of headroom: 1.4 V, 50 mW.
- Output impedance ceiling (Z/8 rule): about 5Ω.
| Source / amp | Rated output | Headroom vs 110 dB peaks | Verdict |
|---|---|---|---|
| Typical phone jack | ~0.5–1 V | −3 to +3 dB | Works at normal levels |
| Apple USB-C dongle | ~1 V, ~30 mW into 32Ω (ASR) | ~+3 dB | Good |
| Focusrite Scarlett-class interface | ~1.7 V (2i2 4th gen, Focusrite spec) | ~+8 dB | Good |
| FiiO K11 R2R, 6.35mm | 460 mW into 32Ω (FiiO) | ~+15 dB | Overkill |
| Schiit Magni (Unity) | 2.5 W into 32Ω (Schiit) | ~+23 dB | Overkill |
The useful reading: past a decent dongle, extra power does nothing for the M50x. What can still matter is the noise floor of a cheap laptop jack (an efficient headphone makes hiss easier to hear) and output impedance above about 5Ω.
Where an Amp or DAC/Amp Actually Helps
Noise. Some laptop and motherboard jacks have audible background hiss or interference with an efficient headphone. A USB dongle or DAC/amp moves the conversion outside the noisy computer and removes it.
Output impedance. Above roughly 5Ω, the source’s output impedance interacts with the M50x’s impedance curve and can loosen the bass slightly. Dongles and desktop amps are all well under 1Ω.
Future headphones. If an HD 600, DT 770 Pro 250Ω or a planar is in your plans, buying a desktop DAC/amp now saves buying twice.
Recommended Pairings
Apple USB-C dongle (~$9)
Clean, low output impedance, and enough voltage for the M50x with a little headroom. Android phones with USB-C work too. If you’re using the M50x on a laptop with a noisy jack, this is the cheapest fix there is.
FiiO K11 R2R (~$170)
A desktop DAC/amp that handles everything from the M50x up to 300Ω Sennheisers (via its 4.4mm balanced output). Use low gain with the M50x so the volume knob has room to move. Buy it if the M50x is your first headphone but not your last.
Schiit Magni (Unity) ($119)
The current Magni replaced the Magni Heresy this page used to recommend. If you already have a DAC (or want Schiit’s DAC card, $199 total), it’s a clean, low-noise amp with a low-gain setting suited to efficient headphones. For the M50x alone it’s far more than needed. The JDS Labs Atom Amp 2 ( See today's price for the JDS Labs Atom Amp 2 from JDS ↗ ) is the equivalent alternative.
The Old Picks and What Replaced Them
This guide previously recommended the FiiO E10K, the Schiit Magni Heresy and the FiiO K7. The Magni Heresy is discontinued (replaced by the Magni (Unity)); the FiiO K7 is no longer on FiiO’s site but still sold at about $220; and the E10K is an old design with little reason to choose it over a ~$9 dongle today. If you already own one, it drives the M50x fine.
Audio Interface Alternative
If you use the M50x for recording or podcasting, you probably have a Focusrite Scarlett, a Behringer UMC or a similar USB interface. Their headphone outputs drive the M50x properly. You don’t need a separate amp; the interface output is the amp in this context. A dedicated DAC/amp makes more sense for pure listening setups.
What Owners Say (as of October 2026)
On r/headphones and r/audioengineering, the M50x amp question gets the same answer year after year: it doesn’t need one, a clean dongle or interface output is enough, and money is better spent on pads, a different headphone or EQ for its elevated bass and treble. For alternatives, see the Sony MDR-7506 vs ATH-M50x and ATH-M50x vs DT 770 Pro comparisons.
See today's price for the Audio-Technica ATH-M50x on Amazon ↗Want the full breakdown on this headphone? Read our in-depth Audio-Technica ATH-M50x review .