Dimensions
Size comparison
PARTYBOX 520ULT TOWER 9 SRS-ULT900
| PARTYBOX 520 | ULT TOWER 9 SRS-ULT900 | Difference | |
|---|---|---|---|
| Height | 769 mm | 910 mm | −141 mm |
| Width | 415 mm | 410 mm | +5 mm |
| Depth | 369 mm | 456 mm | −87 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is PARTYBOX 520 better than ULT TOWER 9 SRS-ULT900?
PARTYBOX 520 has no measurable advantages in this pair.
Why is ULT TOWER 9 SRS-ULT900 better than PARTYBOX 520?
- Battery life15 h vs 25 h+67%
Specifications
Side by side
| Sound | ||
| Output power | 400 W | — |
| Speaker channels | — | Stereo |
| Lowest frequency | 40 Hz | — |
| Highest frequency | 20,000 Hz | — |
| Stereo | — | Yes |
| Battery & charging | ||
| Battery life | 15 h | 25 h |
| Power bank function | — | Yes |
| Mains powered | Yes | Yes |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.3 |
| USB audio | Yes | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Optical input | — | Yes |
| Design & build | ||
| Width | 415 mm | 410 mm |
| Height | 769 mm | 910 mm |
| Depth | 369 mm | 456 mm |
| Protection rating | IPX4 | — |
| Water resistance (IPx) | IPx4 | — |
| Features | ||
| Party / stereo pairing | Yes | Yes |
| Light effects | Yes | Yes |
