Woofer 12", 400W AES, 800W Program |  |
|
|
High power 12” woofer. Very good power handling, excellent linearity and very low distortion. Very efficient heat dissipation is ensured by a radiator that is part of the basket design. The air is forced in the radiator thanks to a sealed spider design.
Applications
The excellent linear response, well controlled down to 50 Hertz, makes the L12P540 especially suitable for band-pass enclosures and small size bass reflex systems. It is a very good solution for two or three way system when a very high BL and good punch is required. |
|
| - |
3-inch, Kapton former, copper voice coil |
| - |
800 Watt continuous program power handling |
| - |
97 dB Sensitivity |
| - |
50 Hz - 2 kHz Frequency range |
| - |
Spider dampening treatment |
| - |
M-roll surround and exponential cone geometry |
|
|
|
| Woofer 12", 400W AES, 800W Program |
|
Nominal Diameter
|
300/12
|
mm/inch
|
|
Rated Impedance
|
8
|
Ohm
|
|
Program Power
|
800
|
Watts
|
|
Power handling capacity
|
400
|
Watts
|
|
Sensitivity
|
97
|
dB
|
|
Frequency Range
|
50-2000
|
Hz
|
|
Effective Piston Diameter
|
260/10.2
|
mm/inch
|
|
Maximum Excursion Before Damage (peak to peak)
|
34/1.3
|
mm/inch
|
|
Minimum Impedance
|
7.4
|
Ohm
|
|
Voice Coil Diameter
|
76/3
|
mm/inch
|
|
Voice Coil Material
|
Copper
|
|
|
Voice Coil Winding Depth
|
18/0.7
|
mm/inch
|
|
Number of layers
|
2
|
|
|
Kind of layer
|
Outside
|
|
|
Top Plate Thickness
|
10/0.4
|
mm/inch
|
|
Cone Material
|
No pressed pulp
|
|
|
Cone Design
|
Curved
|
|
|
Surround Material
|
Polycotton
|
|
|
Surround Design
|
M - roll
|
|
| THIELE - SMALL PARAMETERS |
|
Resonance frequency
|
Fs
|
59
|
Hz
|
|
DC resistance
|
Re
|
5.6
|
Ohm
|
|
Mechanical factor
|
Qms
|
11
|
|
|
Electrical factor
|
Qes
|
0.36
|
|
|
Total factor
|
Qts
|
0.35
|
|
|
BL factor
|
BL
|
19.5
|
T - m
|
|
Effective Moving Mass
|
Mms
|
66
|
gr
|
|
Equivalent Cas air load
|
Vas
|
45
|
liters
|
|
Effective piston area
|
Sd
|
0.053
|
m2
|
|
Max. linear excursion (mathematical)
|
Xmax
|
6.5
|
mm
|
|
Voice - coil inductance @ 1kHz
|
Le1k
|
1.8
|
mH
|
|
Half-space efficiency
|
Eff
|
2.47
|
%
|
|
Overall Diameter
|
320/12.6
|
mm/inch
|
|
Bolt Circle Diameter
|
300
|
mm
|
|
Bolt Hole Diameter
|
7/0.3
|
mm/inch
|
|
Front Mount Baffle Cut-out
|
286/11.3
|
mm/inch
|
|
Rear Mount Baffle Cut-out
|
284/11.2
|
mm/inch
|
|
Depth
|
155/6.1
|
mm/inch
|
|
Volume occupied by the driver
|
2.3
|
liters/ft3
|
|
Net Weight
|
8.5/18.7
|
Kg/lbs
|
|
Shipping Weight
|
9/19.8
|
Kg/lbs
|
|
|
| Woofer 12", 400W AES, 800W Program |
|
|
