DS18 SLC-MD12 12 Inch Subwoofer with PPI Cone Owner’s Manual
- June 5, 2024
 - DS18
 
Table of Contents

DS18 PRO-FU12.4 12-Inch Mid-High Loudspeaker

SPECIFICATIONS
- Nominal Diameter…………………………………………………………………………………………..12″
 - Nominal Impedance………………………………………………………………………. 4 Ohms
 - RMS Power Handling ……………………………………………………………..600W
 - MAX Power Handling …………………………………1000W
 - Sensitivity (1w/1m)………………………………………… 85.2 dB
 - Frequency Response ……………………………………………….. 25-1.6KHz
 - Recommended Hi Pass Crossover…………………………………. 90 Hz
 
Overview
Graph

MOTOR
- Voice Coil Diameter ………………………………………2” / 50.8 mm
 - Voice Coil Former Material ………………… Aluminum
 - Winding Material ……………………………………………………………………………. ACCAW
 - Cone Material …………………………………………Non-Pressed Paper
 - Dust Cap Material ………………………………………….. PPI
 - Surround Material ………………………………………. PPI
 - Basket Material………………………………………. Rubber
 - Basket Color ……………………………………………………………..Glossy Black
 - Magnet Material ………………………………………………………………………..Ferrite
 - Magnet Weight …………………………………………………………………………………42 Oz
 
THIELE & SMALL PARAMETERS
- Equivalent Volume ………………………………………….Vas …………………………… 131 L
 - Excursion (one way) ………………………………………..Xmax …………………………. 13.8 mm
 - Free Air Resonance………………………………………Fs ……………………………….30.2 Hz
 - Mechanical Factor …………………………………………………Qms ……………………………..6.499
 - Electrical Factor ……………………………………………………….Qes……………………………….1.087
 - Total Factor ……………………………………………………………..Qts……………………………………. . 0.931
 - Mechanical Mass ……………………………………………….Mms …………………………76.004 g
 - Mechanical Compliance ………………………..Cms…………………… 0.363 mm/N
 - BL Factor ………………………………………………………………………..BL ………………………………. . 6.816
 - Voice Coil Inductance ……………………Le ……………………….1.842 mH
 - Cone Area …………………………………………………………………Sd ……………………………. . 506.7 cm²
 - DC Resistance…………………………………………………………Re …………………………….. 3.5 ohms
 - Mechanical Mass w/o air…………………………Mmd …………………………15.471g
Efficiency Bandwidth Product 
MEASUREMENTS
- Overall Diameter……………………………………………………………………………..12.4” / 315mm
 - Overall Depth …………………………………………………………………………………..5.62″ / 143mm
 - Front Mount Baffle Cutout ………………………………………..11.14″ / 283mm
 - Mounting Depth …………………………………………………………..4.96″ / 126mm
 - Motor Diameter ……………………………………………………………………………5.1″ / 130mm
 
Single Subwoofer Ported Box

Parameters
- Box External Dimensions (WxHxD): 25.00”x 13.78”x9.76”
 - Material Thickness : 0.59” / 15 mm Net Internal Volume
 - Tuning Frequency 35 Hz Port Area: 15.00 inch2
 - Port Inlet (WxH): 1.19”x 12.60”
 - Port Length : 22.74”
 - Wood Cuts: Qty
 - Top-Bottom (WxH): 25.00”x9.76”
 - Front : 23.22”x12.60”
 - Rear : 25.00”x12.60”
 - Left : 8.58”x12.60”
 - Right : 9.17”x12.60”
 - Port : 7.39”x12.60”
 - Port : 12.98”x12.60”
 
Double Subwoofer Ported Box

Parameters
- Box External Dimensions (WxHxD): 35.00”x 13.78”x 12.86“
 - Material Thickness : 0.59” / 15 mm
 - Net Internal Volume: 2.40 ft3
 - Tuning Frequency: 35 Hz
 - Port Area : 30.00 inch2
 - Port Inlet (WxH): 2.38×12.60”
 - Port Length: 20.78”
 
Recommended Box Dimension
Single Subwoofer Sealed Box

Parameters
- Box External Dimensions (WxHxD): 20.00”x 13.78”x7.28”
 - Material Thickness : 0.59” / 15 mm
 - Net Internal Volume : 0.80 ft3
 
Wood Cuts
- Top-Bottom: (WxH): 20.00”x7.28”
 - Front-Rear (WxH): 20.00”x12.60”
 - Left-Right :(WxH): 6.10”x12.60`”
 
References
Read User Manual Online (PDF format)
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