Fusion ElectronicsMS-FR7021 user manual

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MS-FR4021 MS-FR6021 MS-FR7021 Tweeter Type Titanium Dome Titanium Dome Titanium Dome Max Power (watts) 120 200 260 Efficiency (1W/1M) 87db 90db 91db Frequency Response 90 – 22kHz 70 – 22kHz 60 – 22kHz Min. Mounting Depth Allowing 54mm (2-1/8”) 71.5mm (2-13/16”) 78mm (3-1/16”) Clearance (mm/in) Impedance 4 ohms 4 ohms 4 ohms

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MS-FR4021 MS-FR6021 MS-FR7021 Sealed Enclosure Volume (cu.ft) 0.07 0.43 0.71 Sealed Enclosure Volume (litres) 2 12 20 Ported Enclosure Volume (cu.ft) .34 0.9 1.25 Ported Enclosure Volume (litres) 9.5 26 36 Port diameter (mm/in) 50mm (2”) 50mm (2”) 60mm (2 7/16”) Port length (mm/in) 88mm (3 7/16”) 25mm (1”) 30mm (1 1/8”) Problem Solution Check all connections from the source unit and No sound amplifier to the speaker terminals are correctly connected Check the connections from the source unit/a

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