Bose Virtually Invisible 891
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| Weight: | 2.3 kg |
| Depth: | 99 mm |
| Equipment: | - 2 speakers;<br/> - speaker grilles;<br/> - sample. |
| Description: | Built-in, number of lanes: 2, passive |
| Width: | 239 |
| Height: | 333 |
| Type: | Passive |
| Number of lanes: | 2 |
| Location: | Embedded |
| Acoustic radiation: | Monopolar |
| Woofer Diameter: | 178 mm |
| RF driver dimensions: | 2x 254 mm |
| Woofer dimensions: | 178 mm |
| RF emitter type: | Dome |
| Emitter type: | Dynamic |
| Wall mounting: | There is |
| Removable grid: | There is |
| Connector for connecting to a power amplifier: | Spring |