Dimensions
Size comparison
Professional GPB 18V-1 CISIBOX 1
| Professional GPB 18V-1 C | ISIBOX 1 | Difference | |
|---|---|---|---|
| Height | 162 mm | 115 mm | +47 mm |
| Width | 122 mm | 185 mm | −63 mm |
| Depth | 97 mm | 100 mm | −3 mm |
| Weight | 700 g | 757 g | −57 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Professional GPB 18V-1 C better than ISIBOX 1?
- Weight700 g vs 757 g+8%
Why is ISIBOX 1 better than Professional GPB 18V-1 C?
ISIBOX 1 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Output power | — | 4 W |
| Speaker channels | — | 2.0 |
| Channel count | — | 2 |
| Adjustable equaliser | — | Yes |
| Stereo | Yes | Yes |
| Battery & charging | ||
| Battery life | — | 6 h |
| Battery capacity | — | 2,800 mAh |
| Charging time | — | 4 h |
| Power bank function | Yes | — |
| Mains powered | No | No |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | — |
| USB-C | Yes | — |
| 3.5 mm jack / AUX | — | Yes |
| Optical input | — | Yes |
| Design & build | ||
| Weight | 700 g | 757 g |
| Width | 122 mm | 185 mm |
| Height | 162 mm | 115 mm |
| Depth | 97 mm | 100 mm |
| Colours | Blue | Black |
| Features | ||
| Party / stereo pairing | Yes | — |
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