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 |