We purchase discontinued drivers from JM Lab of France on a regular basis. These high quality drivers were used in some top rated JM Lab speaker systems.
6VE3251B Woofer
Special Case of 6 for $90.00
This great shielded unit is available for $30.00 each. The woofer has a Polyglass cone and injection moulded plastic frame.
 |
 |
|
Focal JM Lab 6VE3251B |
| 6.5 inch Polyglass woofer – midrange |
| Video Shielded |
| Classic Shape highly damped molded ABS Frame |
| Curvealinear Polyglass cone |
| Smooth rolloff at 4000Hz |
| Rubber surround, rubber dust cap, conex spider |
| - 25mm voice coil, aluminum bobbin |
| Specifications: |
| Power = up to 100 watt |
| Fs = 59.77 Hz |
| Vas = 14.02 liter |
| Qts = 0.568 |
| Qes = 0.660 |
| Qms = 4.070 |
| Nominal impedance = 8 ohm |
| Zmin = 7 ohm |
| Re = 6.21 ohm |
| Le = 1.0 mH |
| Lvc = 12.5 mm |
| H gap = 5.0 mm |
| Xmax = 3.75 mm |
| Mms = 10.53 gram |
| D = 12.45 cm |
| Sd = 121.74 cm^2 |
| Sensitivity = 89 dB at 2.83 volt at 1 meter |
| Efficency = 88.4 dB at 1 watt at 1 meter |
| N = 0.44 percent |
| Bl = 6.10 N/A |
| T = 579.28 ma-2 |
| Rms = 0.972 kg/s |
| Cms = 6.73E –04 m/N |
| Ces = 283 mF |
| Les = 25.05 mH |
| Res = 38.3 ohm |
| Cas = 9.98E –06 m5/N |
| Mas = 71.05 Kg/m4 |
| Ras = 6556 ohms.ac |
| Required Zobel network; |
| Resistor = 10 ohms |
| Capacitor = 10 uF |
| Cabinet cut out hole = 147 mm |
| Frame Face; round = 187.4 mm, square = 167.4 mm, thickness = 5.1 mm |
| Depth = 89 mm |
Optimum Sealed Box; 1 cubic foot, -3dB = 69 Hz, Qts = 0.7.
Smallest Sealed Box; 500 cubic inches, -3dB = 76 Hz, Qts = 0.98.
Smallest Vented Box;1 cubic foot, -3dB = 40 Hz, Vent = 40 Hz, port = 3 inch diameter by 8.5 inch long.
Best Quality Vented Box;1.6 cubic foot, -3dB = 34 Hz, Vent = 40 Hz, port = 3 inch diameter by 4 inch long.