Headphones the Apple USB-C to 3.5mm Drives

Dongle · Single Ended · low-confidence specs

Output impedance 1.0 Ω review-measured
Output type Single Ended Dongle
Power output 31 mW @ 32 Ω 3 mW @ 300 Ω*est. 1 mW @ 600 Ω*est.
Spec confidence Low One or more figures are estimated; treat verdicts as approximate
Apple does not publish power specs. Power (31 mW @ 32 Ω) from community measurements (Kinemoss Tech review 2025). Output impedance ~1 Ω from multiple independent measurements. Derives 300 Ω and 600 Ω from voltage ceiling. Replaces synthetic 'Generic USB-C dongle' fixture. · Source ↗
2 ample 11 adequate 1 marginal 17 insufficient

✓ Ample headroom 2

Headphone Headroom Damping Driver
Koss Porta Pro Ample 10.5 dB ✓ ok Dynamic
Grado SR80x Ample 10.2 dB ✓ ok Dynamic

◑ Adequate headroom 11

Headphone Headroom Damping Driver
AKG K371 Adequate 9.7 dB ✓ ok Dynamic
Sennheiser HD 560S Adequate 8.6 dB ✓ ok Dynamic
Sony MDR-7506 Adequate 8.5 dB ✓ ok Dynamic
Meze 99 Classics Adequate 7.9 dB ✓ ok Dynamic
Philips SHP9500 Adequate 5.9 dB ✓ ok Dynamic
Audeze LCD-2 Classic Adequate 5.9 dB ✓ ok Planar
Sennheiser HD 599 Adequate 5.8 dB ✓ ok Dynamic
Audio-Technica ATH-M50x Adequate 5.2 dB ✓ ok Dynamic
Focal Clear (original) Adequate 5.0 dB ✓ ok Dynamic
Audio-Technica ATH-AD700X Adequate 4.9 dB ✓ ok Dynamic
Audeze LCD-X Adequate 4.5 dB ✓ ok Planar

△ Marginal headroom 1

Headphone Headroom Damping Driver
Beyerdynamic DT 770 Pro 80 Marginal 1.1 dB ✓ ok Dynamic

✗ Cannot drive 17

Headphone Headroom Damping Driver
HiFiMan Arya Insufficient -0.1 dB ✓ ok Planar
AKG K702 Insufficient -0.7 dB ✓ ok Dynamic
Sennheiser HD 660S Insufficient -1.4 dB ✓ ok Dynamic
AKG K712 Pro Insufficient -2.2 dB ✓ ok Dynamic
HiFiMan Sundara Insufficient -2.4 dB ✓ ok Planar
Sennheiser HD 800 S Insufficient -3.2 dB ✓ ok Dynamic
HiFiMan Edition XS Insufficient -3.3 dB ✓ ok Planar
AKG K240 Studio Insufficient -4.1 dB ✓ ok Dynamic
Sennheiser HD 600 Insufficient -4.3 dB ✓ ok Dynamic
Sennheiser HD 650 Insufficient -4.5 dB ✓ ok Dynamic
Fostex T50RP Mk3 Insufficient -6.0 dB ✓ ok Planar
Drop + Sennheiser HD 6XX Insufficient -7.0 dB ✓ ok Dynamic
Beyerdynamic T1 (3rd Gen) Insufficient -8.0 dB ✓ ok Dynamic
Beyerdynamic DT 880 Pro Insufficient -9.3 dB ✓ ok Dynamic
Audio-Technica ATH-R70x Insufficient -10.0 dB ✓ ok Dynamic
Beyerdynamic DT 770 Pro 250 Insufficient -10.4 dB ✓ ok Dynamic
Beyerdynamic DT 990 Pro Insufficient -11.5 dB ✓ ok Dynamic