Specification Sheet

BOX SPECS
SEALED BOX RANGE:
Net Internal Volume: 0.4 - 1.25 ft
3
RECOMMENDED SEALED BOX:
External Dimensions: 14” x 14” x 12.25”
Gross Internal Volume: 0.97 ft
3
Net Internal Volume: 0.85 ft
3
F3, Qtc: 36 Hz, 0.99
VENTED BOX RANGE:
Net Internal Volume: 1.0 - 2.0 ft
3
Fb, Tuning: 30-36 Hz
RECOMMENDED VENTED BOX:
External Dimensions: 14” x 23.5” x 14”
Gross Internal Volume: 1.98 ft
3
Vent Area (W x H): 15.0 in
2
(3.75” x 4”)
Vent Length: 18”
Vent Displacement: 0.21 ft
3
Net Internal Volume (Vb): 1.65 ft
3
F3, Ripple, Fb: 28 Hz, 5.7 dB, 33 Hz
RECOMMENDED ENCLOSURE RESPONSE CURVES:
THIELE-SMALL PARAMETERS
• Sensitivity (1W/1m): 84.3 dB
• DC Resistance (R
e
): 3.6∆ + 3.6∆
• Inductance (L
e
): 4.42 mH
• Free Air Resonance (F
s
): 27 Hz
• Equivalent Stiffness: 56 L
• Mechanical Q (Q
ms
): 5.63
• Electrical Q (Q
es
): 0.62
• Total Q (Q
ts
): 0.56
• Cone Area (S
d
): 472 cm
2
• Linear Excursion (X
max
): 24 mm
• Mechanical Travel (X
mech
): 82 mm
• Displacement Volume (V
d
): .12 ft
3
• Size: 12”
• Dimensions: 11.875
”
x 11.875
”
x 7.25
”
• Frequency Response: 24Hz - 200Hz
• Power Range: 450W - 900W RMS
• Power Handling: 900W RMS / 2700W Peak
• Magnet Weight: 174 oz (x3)
• Voice Coil Diameter: 65.5 mm (2.6”)
GENERAL SPECS
X-W12D4
www.alpine-usa.com
@alpineusa
12” X-Series Dual 4∆ Subwoofer