| SPECIFICATIONS |
DOTECH MKII 4" WOOFER |
DOTECH MKII 5" WOOFER |
DOTECH MKII 6" WOOFER |
| Nominal Impedance |
4 Ohm |
4 Ohm |
4 Ohm |
| Power Handling |
100W |
120W |
140W |
| Max. Transient Power Handling |
300W |
300W |
300W |
| Sensitivity (2.83V/1M) |
88dB |
90dB |
90dB |
| Frequency Response |
50-4000Hz |
45-4500Hz |
40-4000Hz |
| FS |
95Hz |
70Hz |
57Hz |
| Voice Coil Diameter |
54mm (2 1/8") |
54mm (2 1/8") |
54mm (2 1/8") |
| Voice Coil Height |
8mm (5/16") |
10.5mm (3/8") |
10.5mm (3/8") |
| Voice Coil Type/Former |
Aluminum |
Aluminum |
Aluminum |
| Voice Coil Wire |
Hexatech Aluminum |
Hexatech Aluminum |
Hexatech Aluminum |
| DC Resistance |
3.0 Ohm |
3.2 Ohm |
3.2 Ohm |
| Voice Coil Inductance @1kHz |
0.17 MH |
0.20 MH |
0.20 MH |
| Magnet System |
Double ferrite rear vented |
Double ferrite rear vented |
Double ferrite rear vented |
| HE-Magnetic Gap Height |
4mm (1/5") |
4mm (1/5") |
4mm (1/5") |
| B-Flux Density |
0.65T |
0.65T |
0.65T |
| BL Product/BXL |
2.53 |
2.76 |
2.97 |
| Max. Linear Excursion/Xmax |
4mm (±2mm) |
5.5mm (±2.75mm) |
5.5mm (±2.75mm) |
| Suspension Compliance CMS |
456 |
629 |
767 |
| Mechanical Q Factor QES |
1.41 |
1.38 |
1.35 |
| Total Q Factor Q/T |
0.98 |
1.04 |
1.09 |
| QMS |
3.29 |
4.19 |
5.60 |
| Mechanical Resistance RMS |
0.39kgS¹ |
0.36kgS¹ |
0.32kgS¹ |
| Moving Mass MMS |
4.35gr (0.15oz) |
6.95gr (0.25oz) |
10.0gr (0.35oz) |
| Equivalent Car Air Load VAS |
2.68L (0.09ft³) |
7.16L (0.25ft³) |
15.30L (0.54ft³) |
| Effective Pison Area SD |
64cm² (9.92in²) |
90cm² (13.95in²) |
119cm² (18.45in²) |
| Cone Material |
Composite cellular fiber |
Composite cellular fiber |
Composite cellular fiber |
| Unit Diameter |
104mm (4") |
135mm (5¼") |
165mm (6½") |
| Mounting Depth |
50mm (2") |
60mm (2.36") |
60mm (2.36") |
| Mounting Cutout |
95mm (3¾") |
120mm (4¾") |
141mm (5½") |
| Net Weight |
0.54kg (1.91lb) |
0.55kg (1.21lb) |
0.60kg (1.32lb) |
