Owner's Manual

3
Specifications
Model
8” 10” 12”
A - Trim Ring Diameter - inch (mm) 8.8 (223) 11.0 (280) 13.2 (335)
B- Trim Ring Height- inch (mm) 1.4 (36) 1.6 (42) 1.7 (44)
C- Overall Diameter - inch (mm) 8.5 (217) 10.8 (274) 13.0 (330)
D - Screw Hole Diameter - inch (mm) 8.0 (204) 10.1 (258) 12.3 (312)
E - Mounting Depth- inch (mm) 3.6 (92) 4.4 (112) 4.8 (122)
F- Magnet Diameter - inch (mm) 4.1 (104) 5.3 (135) 5.1 (130)
G - Mounting Diameter - inch (mm) 7.0 (177) 9.0 (227) 10.9 (276)
CEA 2031
Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards. This means your speaker has the capacity to handle power under
continuous demand, not instantaneous power handling that over time can damage voice coils
.
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.
Model
RM18D2 /
RM18D2B
RM18D4 /
RM18D4B
RM110D2 /
RM110D2B
RM110D4 /
RM110D4B
RM112D2 /
RM112D2B
RM112D4 /
RM112D4B
Nominal Impedance (Ohms) 2 Ω DVC 4 Ω DVC 2 Ω DVC 4 Ω DVC 2 Ω DVC 4 Ω DVC
Frequency Response (Hz) 30-250 31-250 25-250 26-250 21-250 22-250
Voice Coil Diameter - inch
(mm)
1.5 (4-Layer)
(38.6)
1.5 (4-Layer)
(38.6)
2 (4-Layer)
(50.8)
2 (4-Layer)
(50.8)
2 (4-Layer)
(50.8)
2 (4-Layer)
(50.8)
Displacement - cu. ft.
(Liter)
0.05
(1.41)
0.05
(1.41)
0.1
(2.83)
0.1
(2.83)
0.12
(3.4)
0.12
(3.4)
Fs - Free Air Resonance (Hz) 40.0 41.5 33.5 35 28.5 29
Qts 0.76 0.81 0.47 0.51 0.59 0.64
Vas - cu. ft.
(Liter)
0.63
(17.9)
0.67
(19.0)
1.77
(50.2)
1.78
(50.38)
3.8
(107.75)
3.83
(108.62)
Xmax - inch
(mm)
0.28
(7)
0.28
(7)
0.28
(7)
0.28
(7)
0.28
(7)
0.28
(7)
SPL (dB @ 1w/1m) 85 85 88 88 88 88
Power Handling - Watts (RMS/
Peak)
150/300 150/300 200/400 200/400 200/400 200/400
* All measurements taken with voice coils wired in series
C
E
D
A
G
B
F
PUSH
to attach
wire