DLS Performance RCS8.D2

The DLS Reference RCS8.D2 is a high-quality 20 cm (8-inch) slim subwoofer that delivers impressive bass performance despite its exceptionally flat design. Designed for discerning music lovers, it combines precise bass reproduction with a warm, dynamic sound character and is ideal for space-saving car audio installations.

The high-quality sandwich composite cone and the sturdy die-cast aluminum basket ensure controlled, detailed sound reproduction. Thanks to its shallow installation depth of just 71 mm, the subwoofer can be integrated even in tight spaces. Its two 2-ohm voice coils allow for flexible wiring at either 1 or 4 ohms.

With a power handling capacity of 250 watts RMS and optimized for small, sealed enclosures ranging from 8 to 13 liters, the RCS8.D2 offers an impressive combination of compact dimensions, sound quality, and performance.

Technical Specifications

• Manufacturer: DLS

• Series: Reference

• Model: RCS8.D2

• Type: Slim subwoofer / Flat subwoofer

• Size: 20 cm (8 inches)

• RMS Power Handling: 250 watts

• Maximum Power Handling: 500 watts

• Impedance: 2 × 2 ohms (dual voice coil)

• Terminal impedance: 1 ohm in parallel / 4 ohms in series

• Sensitivity: 83 dB (1 W/1 m)

• Frequency range: 30–500 Hz

• Voice coil diameter: 50 mm (2 inches)

• Voice coil: 4-layer copper winding

• Voice Coil Carrier: TIL

• Diaphragm material: Sandwich composite material

• Dust-proof cap: Polypropylene (PP)

• Basket material: aluminum

• Magnet type: Ferrite magnet

• Magnet weight: 40 oz

• Outer diameter: 215 mm

• Installation diameter: 185 mm

• Installation depth: 71 mm

• Weight: 3.5 kg
  
  

Thiele-Small parameters

• Resonance frequency (Fs): 44 Hz

• DC resistance (Re): 3.8 ohms (1.9 + 1.9 ohms)

• Mechanical Grade (Qms): 5.445

• Electrical quality (Qes): 0.726

• Total Quality (Qts): 0.641

• Suspension compliance (cm/N): 0.13 mm/N

• Mass in motion (Mms): 94.8 g

• Force factor (BL): 11.8 Tm

• Equivalent volume (Vas): 9.5 liters

• Effective membrane area (Sd): 213.8 cm²

• Linear travel (Xmax): ±6 mm

• Displacement (Vd): 0.84 liters (manufacturer's specification)
  
  

Recommended Case

• Recommended enclosure type: Enclosed

• Recommended net volume: 8–13 liters

• Total quality in the housing (Qtc): 0.885 – 0.747

• Lower cutoff frequency (F3): 57–55 Hz

• Bass-reflex enclosure: Not recommended by the manufacturer
  
  

What's Included

• 1 × DLS Reference RCS8.D2 Subwoofer

• 1 × User and Installation Manual