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
This great shielded unit is available for $30.00 each. The woofer has a Polyglass cone and injection moulded plastic frame.
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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.
JM Lab 6.5 CP
This 6.5" woofer has a coated paper cone and steel frame. The price for this driver is $20.00 each or 10 for $150.00. The kit price is $177.00 for a pair. Call for box prices.
Nominal Impedence 4 ohms
Fs(Hz) 47.1642
ZMax(ohms) 58.7743
Re(ohms) 3.23
Qms 4.6892
Qes .2727
Qts .2577
Cms .8399
Mms(g) 13.5572
BL 4.0012
VAS (liters) 22.6375
dBSPL 91.4228
L 1kHz (mH) .9180
L 10Khz (mH) .4715
JM Lab 6.5 P
This high quality paper woofer has a steel frame and a large bumped magnet. The price is $20.00 each or 10 for $150.00.
Nominal Impedence 8 ohms
Fs(Hz) 56.2933
ZMax(ohms) 77.0664
Re(ohms) 6.42
Qms 5.7398
Qes .5216
Qts .4782
Cms .7902
Mms(g) 10.1158
BL 6.6361
VAS (liters) 21.2967
dBSPL 90.6461
L 1kHz (mH) 1.0066
L 10Khz (mH) .3952
JM Lab 5.25 P
This 5.25" woofer has a Poly cone, steel frame and is shielded. This woofer is priced at $20.00 each or 10 for $150.00.
Nominal Impedence 10 ohms
Fs(Hz) 68.9836
ZMax(ohms) 87.5530
Re(ohms) 9.990
Qms 4.9691
Qes .6400
Qts .5670
Cms .6907
Mms(g) 7.7061
BL 7.2206
VAS (liters) 6.9602
dBSPL 87.5495
L 1kHz (mH) 1.3301
L 10Khz (mH) .5624
Z Min 10.9094
JM Lab 5.25 PL
This 5.25" woofer has a paper cone and steel frame.The price is $20.00 for each woofer or 10 for $150.00.
Nominal Impedence 4 ohms
Fs(Hz) 62.3163
ZMax(ohms) 37.4172Re(ohms) 3.2300
Qms 6.6758
Qes .6307
Qts .5763
Cms .8169
Mms(g) 7.9844
BL 4.0012
VAS (liters) 8.2320
dBSPL 87.0174
L 1kHz (mH) .6101
L 10Khz (mH) .2596
Z Min 3.6831