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This
12" 8 Ohm member of the XXLS product family has all the design
features suitable for a high performance, high excursion subwoofer
driver. The motor features a double ferrrite magnet motor, supporting
high excursion, and aluminium shorting rings and pole extenders,
lowering and linearizing the inductance of the overhung voice coil.
The light a stiff composite paper cone is vented under the dust
cap, to reduce air compression. The suspension system features a
low-creep rubber surround and a nomex spider, ensuring long term
reliability under high power conditions. The product also features
a rigid cast aluminium basket. In short this drive unit is a state
of the art, high quality high end product.
Specification
| Nominal
Impedance (Ohms) |
Zd
|
8
|
| Maximum
Impedance (Ohms) |
Zo
|
|
| DC
Resistance (Ohms) |
Re
|
5.7
|
| Voice
Coil Inductance (mH) |
Le
|
0.79mH
|
| Resonant
Frequency (Hz) |
Fs
|
27
|
| Mechanical
Q Factor |
Qms
|
8.5
|
| Electrical
Q Factor |
Qes
|
0.55
|
| Total
Q |
Qts
|
0.52
|
| Moving
Mass (g) |
Mms
|
98.14
|
| Suspension
Compliance (mm/N) |
Cms
|
353.0
|
| Effective
Cone Diameter (cm) |
D
|
25.00
Cm
|
| Effective
Piston are (cm2) |
Sd
|
490.9
|
| Equivalent
Volume (Ltrs) |
Vas
|
119.47
L
|
| Force
Factor |
Bl
|
13.06
T-M
|
| Reference
Voltage Sensitivity |
dB
|
88.1
|
|
