vs
8.4Battery9.8
Dimensions
Size comparison
Bromley 750Rockster Air 2 Stereo-Set
| Bromley 750 | Rockster Air 2 Stereo-Set | Difference | |
|---|---|---|---|
| Height | 652 mm | 589 mm | +63 mm |
| Width | 413 mm | 323 mm | +90 mm |
| Depth | 355 mm | 344 mm | +11 mm |
| Weight | 23,900 g | 14,150 g | +9,750 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Bromley 750 better than Rockster Air 2 Stereo-Set?
- Lowest frequency20 Hz vs 47 Hz2.4×
- Bluetooth version5.3 vs 5+6%
Why is Rockster Air 2 Stereo-Set better than Bromley 750?
- Battery life40 h vs 58 h+45%
- Hi-res codec (LDAC / aptX HD / LHDC)No · Bromley 750: Yes
- Weight23,900 g vs 14,150 g+69%
- aptXNo · Bromley 750: Yes
- Highest frequency20,000 Hz vs 22,000 Hz+10%
Specifications
Side by side
| Sound | ||
| Driver type | Dynamic | — |
| Driver size | 254 mm | — |
| Number of drivers | 4 | — |
| Output power | 500 W | — |
| Lowest frequency | 20 Hz | 47 Hz |
| Highest frequency | 20,000 Hz | 22,000 Hz |
| Adjustable equaliser | Yes | — |
| Battery & charging | ||
| Battery life | 40 h | 58 h |
| Battery capacity | — | 7,800 mAh |
| Charging time | 3.5 h | — |
| Fast charging support | Yes | — |
| Power bank function | Yes | — |
| Mains powered | No | Yes |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5 |
| Bluetooth codecs | LC3, AAC, SBC | aptX HD, aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | Yes |
| aptX | No | Yes |
| LDAC | No | No |
| Multipoint (two devices) | Yes | — |
| LE Audio | Yes | — |
| Auracast | Yes | — |
| USB-C | Yes | — |
| Design & build | ||
| Weight | 23,900 g | 14,150 g |
| Width | 413 mm | 323 mm |
| Height | 652 mm | 589 mm |
| Depth | 355 mm | 344 mm |
| Protection rating | IP54 | — |
| Water resistance (IPx) | IPx4 | — |
| Dust protection (IP) | 5 | — |
| Colours | Black | Black |
| Features | ||
| Hands-free calls | Yes | — |
| Party / stereo pairing | Yes | — |
| Light effects | Yes | — |








