3
Specifications
VERIFIED WITH KLIPPEL
To adorn the ‘Verified with Klippel’ mark, the qualifying company’s loudspeaker engineering personnel must be trained
and certified by Klippel prior to using the three separate Klippel systems to design, develop and test. Rockford Fosgate
has made the investment in Klippel to deliver the best possible speakers and subwoofers to their customers.
* All measurements taken with voice coils wired in series
Model
M2D2-12S/SB
M2D4-12S/SB
Nominal Diameter
12”
(304.8mm)
Description
Subwoofer
Nominal Impedance (Ohms)
2 or 4 Ω DVC
Frequency Response (Hz)
20-750
Voice Coil Diameter - inch (mm)
1.95” (2-Layer)
(49.5mm)
Power Handling - Watts (RMS/Peak)
400/1600
Fs - Free Air Resonance (Hz)
38
Qts
0.85
Vas - cu. ft. (Liter)
2.26
3
(64L)
Displacment -cu. fl.
(Liter)
0.12
3
(3.43L)
Sensitivity (2.83V/1M)
90dB
Xmax - inch (mm)
0.55”
(15mm)
Grille/Trim Ring
YES
LED Current Draw
0.25 Amps
Recommended Fused Rating For
LED’s (not included)
1 Amp
LED Voltage Range
9-16 Volts
