Compare Open-Ear Designs
Compare open-ear and bone-conduction wireless audio by mechanism, fit, awareness limits, and the model details to verify before buying.
Sennheiser HDB 630 Wireless Over-Ear Headphones
Product details
General specs
- Brand: Sennheiser
- Model: HDB 630
Starting from €445.85
Last price update: 10/3/26
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| Brand | Sennheiser | Sennheiser | Sennheiser | Sennheiser | Sennheiser | Sennheiser |
| Model | HDB 630 | CX 400BT | RS 195 | ACCENTUM Plus | ACCENTUM Plus | RS 175 |
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| Price | €445.85 | €157.56 | €428.02 | €115.89 | €222.90 | €312.08 |
| Seller | Newegg | Newegg | Newegg | Newegg | Newegg | Newegg |
| Update | Oct 17, 2026 | Oct 17, 2026 | Oct 17, 2026 | Oct 17, 2026 | Oct 17, 2026 | Oct 17, 2026 |
| Connector | USB Type-C | 3.5mm | 3.5 mm Jack | 3.5 mm Jack | ||
| Model Name | HDB 630 | CX 400BT | RS 195 | ACCENTUM Plus | ACCENTUM Plus | RS 175 |
| Part Number | 6C-5E4P-A66A | 508901 | RS 195 | 505563 | ||
| Sensitivity | 105 dB (1 kHz / 0 dBFS) | 107 dB SPL (1 kHz / 1 mW) | 117dB S.P.L. at 1KHz | 114dB S.P.L. at 1KHz | ||
| Product Type | Wireless over-ear headphones | True wireless headphones | wireless headphones | Headphones | Headphones | Wireless TV headphones |
| Frequency Response | USB: 6 Hz–40 kHz only when using Line-In or USB (96 kHz), and Bluetooth with aptX adaptive (96 kHz); 6 Hz–22 kHz otherwise | 5Hz-21KHz | 17Hz-22KHz | 17Hz-22KHz | ||
| Noise Cancellation | Adaptive noise cancellation | Adaptive Hybrid ANC | Adaptive Hybrid ANC | |||
