Sennheiser HD 400 700047
The open-back dynamic drivers deliver a neutral 6Hz–38kHz response with 120Ω impedance for accurate mixing. Soft velour ear pads and a 240g weight ensure all-day comfort, reinforced by a durable coiled cable. Best for studio engineers and budget-conscious mixers requiring precise monitoring, not for calls or noisy environments.
form factor over-ear
driver type dynamic
impedance ohms 120
open closed back open
44 Overall Score
Price £242
Snapshot
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | over-ear |
| Open/Closed | open |
| Weight | 0.2 kg / 0.5 lbs |
| Ear Cushion | Velour |
Audio
| Driver Type | dynamic |
| Freq Min | 6 |
| Freq Max | 38000 |
| Impedance | 120 |
| Sensitivity | 110 |
Noise Control
| ANC | No |
| Transparency | No |
Connectivity
| Wireless | No |
| Wired Connector | 3.5mm |
| Detachable Cable | Yes |
| Cable Length | 3 |
vs Competition
| Spec | Sennheiser HD 400 700047 | Sony ULT WEAR WHULT900N/B | Apple AirPods Max Midnight | Technics EAH-A800 | JBL Tune 670NC | Bose QuietComfort Ultra |
|---|---|---|---|---|---|---|
| Form Factor | over-ear | over-ear | over-ear | over-ear | on-ear | over-ear |
| Driver Type | dynamic | dynamic | dynamic | dynamic | dynamic | dynamic |
| Driver Size (mm) | - | 40 | 40 | 40 | 32 | - |
| Impedance Ohms | 120 | 314 | 16 | 34 | 32 | 32 |
| Wireless | false | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Open Closed Back | open | closed | closed | closed | closed | closed |
| Bluetooth Version | - | 5.2 | 5.0 | 5.2 | 5.3 | 5.3 |
| Battery Life Hours | - | 30 | 20 | 50 | 70 | 24 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| Sennheiser HD 400 700047 | 33.3 | 20.3 | 80.7 | 56.2 | 51.4 | 74.2 | 50.1 | 10.5 |
| Sony ULT WEAR WHULT900N/B Compare | 98.4 | 88.8 | 80.7 | 96.8 | 81.1 | 61.3 | 99.2 | 89.2 |
| Apple AirPods Max Midnight Compare | 98.4 | 87 | 93.3 | 94.8 | 76.3 | 34.5 | 88.5 | 98.6 |
| Technics EAH-A800 Compare | 95 | 98.8 | 80.7 | 97.9 | 88.9 | 61.3 | 98 | 65.3 |
| JBL Tune 670NC Compare | 98.4 | 74.3 | 80.7 | 88.3 | 95.4 | 90.7 | 99.4 | 98.6 |
| Bose QuietComfort Ultra Compare | 95 | 83.9 | 96 | 62.8 | 78.3 | 85.3 | 99.4 | 76.5 |
Price
Value & Pricing
From £242
