P2D2/D4-8

The Rockford Fosgate Punch P2D2-8 and P2D4-8 subwoofers impress with powerful bass reproduction, high power handling, and a rugged design. With 250 watts RMS and a maximum power handling capacity of 500 watts, these 20 cm (8-inch) subwoofers deliver impressive low-frequency performance in a compact package.

The Kevlar-reinforced paper cone ensures high stability and precise bass reproduction, while the special foam surround and dual suspension system enable controlled cone movement. The sturdy steel basket, the generously sized voice coil, and the vented driver design ensure reliable performance even under heavy loads.

Thanks to the dual voice coil, these subwoofers offer flexible wiring options and are suitable for both sealed and bass-reflex enclosures. The P2D2-8 and P2D4-8 models differ in their voice coil impedance.

Product Features

• 20 cm (8-inch) Punch P2 Subwoofer

• 250 watts RMS / 500 watts MAX.

• Dual voice coil with 2 × 2 ohms or 2 × 4 ohms

• Kevlar-reinforced paper diaphragm for high stability

• Special foam surround for controlled deflection

• Sturdy steel basket with optimized ventilation

• Dual centering spider for precise diaphragm guidance

• High-Temperature Voice Coil with Aluminum Carrier

• Nickel-plated pressure connections for secure cable connections

• Sturdy Polypropylene Dust-Proof Cap

• Decorative Aluminum Trim Ring

• Suitable for sealed and bass-reflex enclosures
  
  

Technical Specifications

General Information

• Manufacturer: Rockford Fosgate

• Series: Punch P2

• Model: P2D2-8 / P2D4-8

• Type: Passive Subwoofer

• Nominal diameter: 20 cm (8 inches)

• RMS Power Handling: 250 watts

• Max. power handling: 500 watts

• Efficiency (1 W/1 m): 83 dB

• Voice coil type: Dual voice coil (DVC)

• Voice coil diameter: 58 mm

• Diaphragm material: Kevlar-paper composite

• Bead material: foam

• Basket material: Steel

• Voice coil former: Aluminum

• Effective membrane area (Sd): 221 cm²

• Outer diameter: 222 mm

• Installation diameter: 181 mm

• Installation depth: 121 mm

• Shipping weight: approx. 4.9 kg
  
  

Rockford Fosgate P2D2-8 – 2 × 2 ohms

• Impedance: 2 × 2 ohms

• Wiring: 1 ohm in parallel / 4 ohms in series

• RMS Power Handling: 250 watts

• Max. power handling: 500 watts

• Frequency range: 39.6–250 Hz

• Resonance frequency (Fs): 39.6 Hz

• Total Quality (Qts): 0.46

• Electrical quality (Qes): 0.51

• Mechanical quality (Qms): 5.4

• Equivalent volume (Vas): 9.9 liters

• DC resistance (Re): 2 × 1.7 ohms

• Voice coil inductance (Le): 2.9 mH

• Moving mass (Mms): 113.5 g

• Linear travel (Xmax): ±7.7 mm

• Maximum mechanical deflection: ±24 mm

• Voice coil winding height: 25.6 mm

• Force factor (BL): 13.9 N/A
  
  

Rockford Fosgate P2D4-8 – 2 × 4 ohms

• Impedance: 2 × 4 ohms

• Wiring: 2 ohms in parallel / 8 ohms in series

• RMS Power Handling: 250 watts

• Max. power handling: 500 watts

• Frequency range: 43–250 Hz

• Resonance frequency (Fs): 43 Hz

• Total Quality (Qts): 0.52

• Electrical quality (Qes): 0.58

• Mechanical quality (Qms): 5.4

• Equivalent volume (Vas): 9.9 liters

• DC resistance (Re): 2 × 3.5 ohms

• Voice coil inductance (Le): 4.3 mH

• Mass in motion (Mms): 96.2 g

• Linear stroke (Xmax): ±7 mm

• Maximum mechanical deflection: ±24 mm

• Voice coil winding height: 23.9 mm

• Force factor (BL): 17.5 N/A
  
  

Recommended Case

Enclosed housing

• Recommended net volume: 6.5 liters

• Lower cutoff frequency (F3): 66 Hz

• Suitable for compact designs and controlled bass reproduction

Bass-reflex enclosure

• Recommended net volume: 18.4 liters

• Bass reflex port diameter: 50 mm

• Bass reflex port cross-sectional area: 20 cm²

• Bass reflex tube length: 22 cm

• Tuning frequency (Fb): 38 Hz

• Lower cutoff frequency (F3): 33 Hz (P2D2-8) / 34 Hz (P2D4-8)

• Suitable for deep bass reproduction with higher efficiency in the tuned frequency range
  
  

What's Included

• 1 × Rockford Fosgate Punch P2D2-8 or P2D4-8 subwoofer (depending on the selected model)

• 1 × Decorative Ring

• Installation and Operating Instructions