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英國Amina AIW550E 產品規格：
| Specifications | AIW550E | |
| Nominal impedance | 4 Ohms (APU550 connected) | |
| Power handling (continuous / peak) | 50W / 100W | |
| Sensitivity (2mm plaster/mud skim) | 87dB 1m/ 2.83Vrms (APU550 connected) | |
| Frequency response | 105Hz - 20kHz (-6dB) mounted in BackboxFS (APU550 connected) | |
| Electrical connection | Blue butt splice crimp terminals (14-16 AWG) | |
| Dimensions | 173/4” x 135/8” x 15/8” (450mm x 345mm x 40mm) | |
| Product weight | 3.27lbs (1.48kg) | |
| Fixing requirement | Amina BackboxFS / BackboxSW (wood adhesive and fixing blocks | |
| available on request) | ||
| In-line protection unit | APU550 | |
| Manufacturer limited warranty for residential applications | 10 years |
