DS18 SRW12.4 12 Inch Shallow Subwoofer Owner’s Manual
- June 5, 2024
- DS18
Table of Contents
OWNER’S MANUAL
SRW12.4
12” SHALLOW SUBWOOFER
SPECIFICATIONS
Nominal Diameter …………………………… 12″
Nominal Impedance ………………………….. 4 Ohm
RMS Power Handling …………………………. 220W
MAX Power Handling …………………………. 440W
Sensitivity (1w/1m) ………………………… 88 dB
Frequency Response …………………………. 25-250Hz
Recommended Low Pass Crossover ………………. 80Hz
MOTOR
Voice Coil Diameter ……………….. 2″ / 50.8mm
VC Former Material ………………… Aluminum / Aluminio
Winding Material ………………….. SV
Cone Material …………………….. Paper
Dust Cap Material …………………. Paper
Surround Material …………………. Rubber
Basket Material …………………… Steel
Basket Color and Finish ……………. Glossy Red
Magnet Material …………………… Ferrite
Magnet Weight …………………….. 45 oz
Displacement Volume ……………….. 2.12L/0.074ft3
THIELE & SMALL PARAMETERS
Equivalent Volume …………………Vas ……. 26.6L / 0.93ft3
Excursion (one way) ………………. Xmax……. 15 mm
Free Air Resonance ………………..Fs …….. 53 Hz
Mechanical Factor …………………Qms ……. 4.23
Electrical Factor …………………Qes ……. 1.126
Total Factor ……………………..Qts…….. 0.889
Mechanical Mass …………………..Mms ……. 133.052g
Mechanical Compliance ……………..Cms ……. 0.067 mm/N
BL Factor ………………………..BL …….. 11.923
Voice Coil Inductance ……………..Le……… 1.09 mH
Cone Area ………………………..Sd …….. 530.93 Cm2
DC Resistance …………………….Re …….. 3.4 Ohm
Efficiency Bandwidth Product ……….EBP………47
Mechanical Mass Without Air ………..Mmd ……. 119.228g
MEASUREMENTS:
Overall Diameter ……………………. 12.44” / 316mm
Overall Depth ………………………. 4.13” / 105mm
Front Mount Baffle Cutout ……………. 10.98” / 279mm
Mounting Depth ……………………… 3.54” / 90mm
Motor Diameter ……………………… 5.51″ / 140mm
Recommended Box Dimension
Single Subwoofer Sealed Box
Parameters
Box External Dimensions (WxHxD): 33.46”x 15.75”x 4.89”
Material Thickness: 0.51” / 13 mm
Net Internal Volume: 1.00 ft3
Wood Cuts Qty
Top-Bottom
(WxH): 33.46”x4.89” 2
Front-Rear
(WxH): 33.46”x14.72” 2
Left-Right
(WxH): 3.87”x14.72” 2
Single Subwoofer Ported Box
Parameters
Box External Dimensions
(WxHxD): 35.43”x 17.72”x 5.79”
Material Thickness: 0.51” / 13mm
Net Internal Volume: 1.50 ft3
Tuning Frequency: 45 Hz
Port Area: 7.06 inch2
Pipe Inner Diameter: 3.00”
Pipe Length: 3.32”
Wood Cuts Qty
Top-Bottom
(WxH): 35.43”x5.79” 2
Front-Rear
(WxH): 35.43”x16.69” 2
Left-Right
(WxH): 4.77”x16.69” 2
Double Subwoofer Ported Box
Parameters
Box External Dimensions
(WxHxD): 51.18”x 17.72”x 6.55”
Material Thickness: 0.51” / 13mm
Net Internal Volume: 2.50 ft3
Tuning Frequency: 45 Hz
Port Area: 14.13 inch2
Pipe Inner Diameter: 3.00”
Pipe Length: 4.57”
Wood Cuts Qty
Top-Bottom
(WxH): 51.18”x6.55” 2
Front-Rear
(WxH): 51.18”x16.69” 2
Left-Right
(WxH): 5.53”x16.69” 2
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