Headphones · Open-back · Dynamic
Neumann NDH 20
All Neumann · MSRP $599

The NDH 20 is a closed-back, circumaural dynamic studio headphone with 38 mm drivers, a foldable design and detachable cables. It is positioned for monitoring and mixing and sits alongside the open-back NDH 30 in Neumann's headphone range.
Specifications
| Frequency response | 5 Hz – 30 kHz |
| Sensitivity | 114 dB SPL (1 kHz, 1 Vrms) |
| Impedance | 150 Ω |
| Power handling | 1 W |
| THD | 0.1% |
| Driver | 38 mm |
| Weight | 390 g |
As stated by the manufacturer — not community data.
Will it drive? · On paper
Plays straight from a phone
A phone or laptop reaches full listening level. An amp is a choice, not a requirement.
| Needs, for 110 dB peaks | 0.63 V · 2.7 mW |
| Phone or laptop (≈0.70 V, 20 mW) | Enough |
| Dongle DAC/amp (≈2.0 V, 120 mW) | Enough |
Worked out from the stated 114 dB/V and 150 Ω — not a listening test.
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