CUSTOM
PRECISION TRANSDUCERS

LF12P903

WOOFER
  • 3-inch, fiberglass inside/outside copper voice coil
  • 1000W continuous program power handling
  • 97 dB Sensitivity
  • 40 Hz – 2 kHz Frequency range
Where to buy
Features Specifications Downloads
Where to buy
Features
  • 3-inch, fiberglass inside/outside copper voice coil
  • 1000W continuous program power handling
  • 97 dB Sensitivity
  • 40 Hz – 2 kHz Frequency range
  • M-roll surround and exponential cone geometry

CUSTOM

Part number:

11100144
LF12P903
8ohm

Specifications
General specifications
Nominal Diameter
12 inch / 305 mm
Rated Impedance
8 ohm
Program Power (watt)
1000 W
Power handling capacity
500 W
Sensitivity
97.8 dB
Frequency range
40 - 2000 Hz
Effective piston diameter
260 mm / 10.24 inch
Max. Excursion Before Damage
36 mm / 1.42 inch
Minimum Impedance (ohm)
8.2 ohm
Voice Coil Diameter
3.0 inch / 76 mm
Voice Coil Winding Material
Copper
Voice Coil Length
19 mm / 0.75 inch
Number of layers
2
Kind of layers
inside/outside
Top Plate Thickness
10 mm / 0.39 inch
Cone Design
Curved
Surround Material
Polycotton
Surround Design
M-roll
Thiele - small parameters
Resonance frequency (Fs)
47 Hz
DC resistance (Re) (ohm)
5.74 ohm
Mechanical factor
4.20 Qms
Electrical factor
0.24 Qes
Total factor
0.23 Qts
Bl factor (Bl) (T x m)
22.13 T x m
Effective moving mass (Mms)
70.0 g
Equivalent Cas air loaded (Vas)
65.0 liters
Effective piston area (Sd)
0.053 m2
Max. linear excursion (Xmax)
7 mm
Voice coil inductance @ 1kHz (Le1k)
1.06 mH
Half-space efficency (Eff)
2.68%
Mounting information
Overall diameter
320 mm / 12.6 inches
Bolt circle diameter
293-304 mm / 11.54-11.97 inch
Bolt hole diameter
7 mm / 0.28 inch
Front mount baffle cut-out
282 mm / 11.1 inch
Rear mount baffle cut-out
284 mm / 11.18 inch
Volume occupied by the driver
2.6 liters / 0.1 ft3
Standard compliance
Safety agency
CE compliant
Size / Weight
Weight
7 kg / 15.43 lbs
Shipping information
Package Height
210 mm / 8.27 inches
Package Width
360 mm / 14.17 inches
Package Depth
360 mm / 14.17 inches
Package Weight
8.05 kg / 17.75 lbs
Downloads
SPECIFICATIONS
SPECSHEET - ENG
PDF
640 KB
19-08-2024
ACOUSTIC MEASUREMENTS
PDF
159 KB
25-07-2024
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