|
|
PM7A
Overall Diameter |
|
23.2 cm |
23.2 cm |
23.2 cm |
23.2 cm |
| Overall Depth |
|
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 |
| Baffle Hole cut-out |
|
19 cm |
19 cm |
19 cm |
19 cm |
| Voice coil diameter |
|
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 |
| Air gap width |
|
1 mm |
1 mm |
1 mm |
1 mm |
| Magnet type |
|
Alcomax 3 |
Alcomax 3 |
Alcomax 3 |
Alcomax 3 |
| Flux density (I Tesla=10,000 Gauss) |
|
1.95 Tesla |
2.1 Tesla |
2.3 Tesla |
2.4 Tesla |
| Diaphragm |
|
Twin Paper |
Twin Paper |
Twin Paper |
Twin Paper |
| Frequency response |
|
30 Hz-20kHz |
30 Hz-20kHz |
30 Hz-20kHz |
30 Hz-20kHz |
| Nominal air resonance |
|
36 Hz |
36 Hz |
36 Hz |
36 Hz |
| Sensitivity at 1m/1kHz/1 watt |
|
96 db |
97 db |
98 db |
98 db |
| Maximum voice coil travel |
|
± 1 mm |
± 1 mm |
± 1 mm |
± 1 mm |
| Shipping weight |
|
4.0 kg |
6.0 kg |
6.5 kg |
10.0 kg | |
