Mackie HD1221
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| Weight: | 29.9 kg |
| Depth: | 513 mm |
| Description: | Concert, number of bands: 2, active, bass-reflex type |
| Width: | 513 |
| Height: | 680 |
| Type: | Active |
| Purpose: | Concert |
| Number of lanes: | 2 |
| Crossover frequency: | 1.5 kHz |
| Maximum frequency: | 18000 Hz |
| Minimum frequency: | 65 Hz |
| Number of balanced inputs: | 1 |
| Number of line inputs: | 1 |
| Line out: | There is |
| Acoustic radiation: | Monopolar |
| Acoustic design: | Bass-reflex type |
| Finish options: | Black |
| Overload protection: | There is |
| RF emitter material: | Titanium |
| Woofer material: | Cellulose |
| RF driver dimensions: | 44 mm |
| Woofer dimensions: | 305 mm |
| Emitter type: | Dynamic |
| Max power: | 1200 W |
| Maximum sound pressure: | 133 dB |
| Rated power: | 600 W |
| Bandwidth Options: | -3 dB |
| Column wall thickness: | 15 mm |