Earthquake T-57
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| Brand: | Earthquake |
| Description: | Coaxial speaker oval 12.7x17.78 cm 5x7 in. |
| Type: | Coaxial speaker |
| Dimensions: | 30 mm |
| Power: | 400 W maximum |
| Number of lanes: | 2 |
| Frequency response: | 50 - 20000 Hz |
| Size: | Oval 12.7x17.78 cm 5x7 in. |
| Impedance: | 4 ohm |
| Sensitivity: | 87 dB |
| Installation depth: | 58 mm |
| Mounting hole: | 126x181 mm |
| Basket: | Stamped |
| Diffuser material: | Mylar |
| Basket material: | Steel |
| Suspension material: | Butyl rubber |
| Crossover slope: | 12 dB/oct |