vs
9.6Build & features2.6
Why is BOOMBOX 4 better than Bromley 450?
- Water resistance (IPx)IPx8 vs IPx5+60%
- Dust protection (IP)6 vs 5+20%
- Lowest frequency37 Hz vs 40 Hz+8%
Why is Bromley 450 better than BOOMBOX 4?
- Battery life34 h vs 40 h+18%
Specifications
Side by side
| Sound | ||
| Driver type | — | Dynamic |
| Driver size | — | 165.1 mm |
| Number of drivers | — | 4 |
| Output power | — | 400 W |
| Speaker channels | — | Stereo |
| Lowest frequency | 37 Hz | 40 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Adjustable equaliser | — | Yes |
| Stereo | — | Yes |
| Battery & charging | ||
| Battery life | 34 h | 40 h |
| Charging time | — | 3.5 h |
| Fast charging support | — | Yes |
| Power bank function | — | Yes |
| Mains powered | Yes | — |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.3 |
| Bluetooth codecs | — | LC3, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| Multipoint (two devices) | — | Yes |
| LE Audio | — | Yes |
| Auracast | — | Yes |
| USB-C | — | Yes |
| USB audio | Yes | — |
| 3.5 mm jack / AUX | — | Yes |
| Design & build | ||
| Weight | — | 12,320 g |
| Width | 510 mm | — |
| Height | 260 mm | — |
| Depth | 210 mm | — |
| Protection rating | IP68 | IP55 |
| Water resistance (IPx) | IPx8 | IPx5 |
| Dust protection (IP) | 6 | 5 |
| Features | ||
| Party / stereo pairing | Yes | — |
| Light effects | — | Yes |








