About: DS18 SLC12S Select Series 12" 250W RMS Subwoofer - SVC 4 Ohm

Introducing the DS18 SLC12S, a game-changing subwoofer that will revolutionize any car's audio system. The Select Series Subwoofers from DS18 are the epitome of excellence in car audio. Available in 8", 10", and 12" sizes, these subwoofers feature sleek black steel baskets that exude confidence and sophistication. Designed for beginning car audiophiles and savvy deal-finders, the Select Series surpasses all other entry-level offerings in terms of quality and RMS power.

The SLC12S also boasts a high-quality ferrite motor with an aluminum voice coil, ensuring exceptional power-to-DB efficiency and unparalleled loudness. These single voice coil subwoofers offer simplicity, compatibility, ease of wiring, flexibility in amplifier selection and wiring configurations, affordability, and a wide variety of options. Its black aluminum voice coil former adds to its durability, ensuring that the SLC12S will never let you down, even during the most intense bass-heavy sessions.

With its 500W of MAX power handling and 250W of RMS power handling, this subwoofer delivers a thunderous audio experience that will leave you breathless. The lower end of the SLC12S’s frequency response (25Hz) allows the SLC12S to reproduce deep, rumbling bass notes with authority. On the upper end of the frequency response (4.2kHz), the SLC12S maintains its fidelity, accurately reproducing midrange frequencies. The wide frequency response of the SLC12S makes it a versatile subwoofer that excels in various genres and applications.

Installation is a breeze, thanks to the SLC12S's thoughtful design. With a mounting cut-out of 10.9" and a shallow mounting depth of 5.47", this subwoofer seamlessly integrates into your vehicle, without compromising valuable space. Its overall diameter of 12.44" and depth of 6.42" guarantee a perfect fit, making it an ideal choice for various car models.

Specifications:

• Nominal Diameter: 12” (305 mm) 
• Nominal Impedance: 4 Ohms
• RMS Power Handling: 250 W
• MAX Power Handling: 500 W
• Sensitivity (1w/1m): 90 dB
• Frequency Response: 25Hz - 4.2KHz
• Recommended Lo Pass Crossover: 90 Hz

Motor:

• Voice Coil Diameter: 2" (50.8 mm)
• VC Former Material: Aluminum
• Winding Material: CCAW
• Cone Material: Non Pressed Paper
• Dust Cap Material: Paper
• Surround Material: Foam
• Basket Material: Steel
• Basket Color/Finish: Gloss Black
• Magnet Material: Ferrite
• Magnet Weight: 45 oz

Thiele & Small Parameters:

• Equivalent Volume: 32.8 L
• Excursion (one way): 17 mm
• Free Air Resonance: 41Hz
• Mechanical Factor: 4.611
• Electrical Factor: 1.116
• Total Factor: 0.898
• Moving Mass: 174.993g
• Compliance: 0.049 mm/H
• BL Factor: 12.946
• Voice Coil Inductance: 1.018mH
• Cone Area: 530.93 Cm2
• DC Resistance: 3.4 ohms
• Efficiency Bandwidth Product: 36.73

Recommended Enclosures: 

• Sealed Internal Volume: 21.2L / 0.75ft3
• Sealed Box Output Response F3: 42Hz
• Ported Internal Volume: 39.6L / 1.4ft3
• Port Size *Square (W x H x Long): 1.26" x 12.28" x 24.35" / 32.1 x 312 x 618.4mm
• Port Tuning Frequency FB: 32Hz
• Ported Box Output Response F3: 26Hz

Measurements:

• Overall Diameter: 12.44” (316 mm)
• Overall Depth: 6.42” (163 mm)
• Front Mount Baffle Cutout: 10.9” (277 mm)
• Mounting Depth: 5.47” (139 mm)
• Motor Diameter: 5.94" (151 mm)