Acoustics Ground Zero GZFF 690
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| Brand: | Ground Zero |
| Description: | Coaxial speaker oval 15x23 cm 6x9 in. |
| Type: | Coaxial speaker |
| Dimensions: | 150x230 mm |
| Power: | 180 W maximum |
| Number of lanes: | 4 |
| Frequency response: | 40 - 22000 Hz |
| Size: | Oval 15x23 cm 6x9 in. |
| Impedance: | 4 ohm |
| Sensitivity: | 92 dB |
| Ultra HF cone material: | Piezo |
| Installation depth: | 83 mm |
| Basket: | Cast |
| Diffuser material: | Mylar |
| Basket material: | Steel |
| Suspension material: | Rubber |
| Magnet: | Ferrite |