Nominal Specifications
| Nominal Diameter |
66 mm (2.5 in) |
| Overall Diameter |
88/68 mm (3.46/2.68 in) |
| Bolt Circle Diameter |
75 mm (2.95 in) |
| Baffle Cutout Diameter |
60.5 mm (2.38 in) |
| Depth |
32.5 mm (1.28 in) |
| Flange and Gasket Thickness |
6 mm (0.24 in) |
| Net Weight |
122 g (0.3 lb) |
Shipping Box (Single Carton Box - 36 units) |
285 x 285 x 255 mm (11.2 x 11.2 x 10 in) |
| Shipping Weight (36 units) |
5.8 kg (12.8 lb) |
Technical Parameters
| Nominal Impedance |
4 Ohm |
| Minimum Impedance |
4.2 Ohm |
| AES Power Handling (1) |
20 W |
| Maximum Power Handling (2) |
40 W |
| Sensitivity (1W/1m) |
85 dB |
| Frequency Range |
170÷20000 Hz |
| Voice Coil Diameter |
19 mm (0.75 in) |
| Winding Material |
Al |
| Former Material |
Kapton |
| Winding Depth |
4.8 mm (0.19 in) |
| Magnetic Gap Depth |
3 mm (0.12 in) |
| Flux Density |
1.3 T |
| Magnet |
Neodymium Ring |
| Basket Material |
Polycarbonate |
| Demodulation |
No |
| Cone Surround (3) |
Half Roll |
| NET Air Volume filled by Loudspeaker |
0.030 dm^3 (0.001 ft^3) |
| Spider Profile |
1x constant height waves |
|
Thiele and small parameters
| Fs |
170 Hz |
| Re |
3.9 Ohm |
| Qes |
0.85 |
| Qms |
3.6 |
| Qts |
0.69 |
| Vas |
0.2 dm^3 (0.01 ft^3) |
| Sd |
20.1 cm^2 (3.12 in^2) |
| Xmax (4) |
1.90 mm |
| Xdamage (5) |
5.1 mm |
| Mms |
2.0 g |
| Bl |
3.2 N/A |
| Le |
0.1 mH |
| Mmd |
1.9 g |
| Cms |
0.44 mm/N |
| Rms |
0.6 kg/s |
| Eta Zero |
0.14 % |
| EBP |
200 Hz |
PART NUMBER (P/N)
| Faston Terminals - 4 Ohm Version |
00664372 |
Notes:
| (1) 2 Hours Test According to AES 2-1984 Rev. 2003 |
| (2) Maximum power is defined as 3dB greater than nominal power. |
| (3) EPDM (Rubber) |
| (4) Xmax= [(winding depth - magnetic gap depth)/2] + (magnetic gap depth/3) |
| (5) Maximum excursion before permanent damage |
|