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Thunder3128 - Thunder3000, 12" 8 Ohm Subwoofer
- Black Foam Surround
- MTX Embossed Polypropylene Dustcap
- 1.5" Voice Coil on Black Kapton Former
Provides High Power Handling
- 28 oz Strontium Ferrite Magnet
For High Efficiency
- Asymmetrical Linear Drive System
Improves Linearity and Lowers Distortion
- Flat Progressive Spider
For Lower Distortion
- Extended Vented Pole Piece
Provides a more symmetrical magnetic field
| Free Air Resonance |
Fs |
32.0 Hz |
| Volume Acoustic Suspension |
Vas |
3.29 Ft^3 |
(93.2 l) |
| Total Q |
Qts |
.54 |
| Electrical Q |
Qes |
.56 |
| Mechanical Q |
Qms |
14.41 |
| DC Resistance |
Re |
6.45 Ohm |
| Linear Excursion (One Way) |
Xmax |
.32” |
(8.1 mm) |
| Effective Piston Diameter |
D |
10.250” |
(.2604 m) |
| RMS Power Handling |
RMS |
200 Watts |
| Total Power Handling |
Total |
400 Watts |
| Sensitivity 1W/1m |
SPLo |
90.1 dB |
| Reference Efficiency |
No |
0.52% |
| Frequency Response |
|
32 - 150Hz |
| Voice Coil Inductance |
Le |
3.2 mH |
| Gap Height |
|
.312” |
(7.9 mm) |
| Voice Coil Height |
|
.878” |
(22.3 mm) |
| Motor Force |
BL |
15.64 Tm |
| Compliance |
Cms |
.234 mm/N |
| Total Moving Mass |
Mms |
105.7 g |
| Moving Mass of Driver |
Mmd |
98.6 g |
| Suspension Losses |
Rms |
1.47 |
| Effective Surface Area |
Sd |
82.5 in^2 |
(.0532m^2) |
| Mounting Diameter |
|
11 1/16” |
(281.0 mm) |
| Overall Diameter |
|
12 3/16” |
(309.6 mm) |
| Mounting Depth |
|
5 5/8 ” |
(142.9 mm) |
| Overall Depth |
|
6 ” |
(152.4 mm) |
| Speaker Displacement (Inside Box) |
|
180in^2 |
(3.0 l) |
| Speaker Displacement (Outside Box) |
|
130in^2 |
(2.1 l) |
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