Acoustics Polk Audio db690
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| Brand: | Polk Audio |
| Description: | Coaxial speaker oval 15x23 cm 6x9 in. |
| Type: | Coaxial speaker |
| Dimensions: | 19 mm |
| Power: | 300 W maximum |
| Number of lanes: | 3 |
| Frequency response: | 35 - 22000 Hz |
| Size: | Oval 15x23 cm 6x9 in. |
| Impedance: | 4 ohm |
| Sensitivity: | 93 dB |
| Basket: | Stamped |
| Diffuser material: | Composite |
| Basket material: | Steel |
| Suspension material: | Butyl rubber |
| Magnet: | Ferrite |