Alcomax 2 Magnet Series


 

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PM6A

PM7A

PM2A

PM5A

PM4A

 

 

 

 

 

 

Overall Diameter 23.2 cm 23.2 cm 23.2 cm 23.2 cm 23.2 cm
Overall Depth 10.5 cm 11.0 cm 13.0 cm 13.0 cm 15.5 cm
PCD Mounting Centres 20.8 cm 20.8 cm 20.8 cm 20.8 cm 20.8 cm
Baffle Hole cut-out 19 cm 19 cm 19 cm 19 cm 19 cm
Voice coil diameter 3.9 cm 3.9 cm 3.9 cm 3.9 cm 3.9 cm
Voice coil impedance (nominal) 8 or 15 ohm 8 or 15 ohm 8 or 15 ohm 8 or 15 ohm 8 or 15 ohm
Air gap width 1 mm 1 mm 1 mm 1 mm 1 mm
Magnet type Alcomax 2 Alcomax 3 Alcomax 3 Alcomax 3 Alcomax 3
Flux density (I Tesla=10,000 Gauss) 1.75 Tesla 1.95 Tesla 2.1 Tesla 2.3 Tesla 2.4 Tesla
Diaphragm Twin Paper Twin Paper Twin Paper Twin Paper Twin Paper
Frequency response 30 Hz-20kHz 30 Hz-20kHz 30 Hz-20kHz 30 Hz-20kHz 30 Hz-20kHz
Nominal air resonance 36 Hz 36 Hz 36 Hz 36 Hz 36 Hz
Sensitivity at 1m/1kHz/1 watt 96 db 96 db 97 db 98 db 98 db
Maximum voice coil travel ± 1 mm ± 1 mm ± 1 mm ± 1 mm ± 1 mm
Shipping weight 4.0 kg 4.0 kg 6.0 kg 6.5 kg 10.0 kg