P2D2/D4-15

The Rockford Fosgate Punch P2D2-15 / P2D4-15 is a high-performance 38 cm (15-inch) subwoofer that delivers powerful, deep bass and high power handling. The Punch P2 series combines a robust design with high-quality materials and was developed for use in both sealed and bass-reflex enclosures.

The Kevlar-reinforced paper cone ensures high stability and precise bass reproduction. Thanks to VAST technology (Vertical Attach Surround Technique), the effective usable cone area is increased. A temperature-resistant 58-mm dual voice coil reinforced with Nomex, a generously sized foam surround, and the dual magnet system ensure reliable performance even under heavy load.

The two models, P2D2-15 and P2D4-15, differ in their voice coil impedance and thus offer flexible connection options for various amplifier configurations.

Features

• 38 cm (15-inch) Punch P2 Subwoofer

• 400 watts RMS / 800 watts maximum power handling

• Kevlar-reinforced paper diaphragm for high stability

• VAST technology for increasing the effective membrane area

• 58 mm High-Temperature Dual Voice Coil

• Nomex-reinforced voice coil surround

• High-density poly-foam surround for large cone excursions

• Dual centering spider for controlled diaphragm guidance

• Sturdy steel basket with built-in ventilation

• High-performance, double-stacked magnet system

• Extended pole core and optimized pole plate

• High-quality terminal blocks

• Suitable for sealed and bass-reflex enclosures

• Available in 2 × 2 ohms or 2 × 4 ohms
  
  

Technical Specifications

General Technical Specifications

• Manufacturer: Rockford Fosgate

• Series: Punch P2

• Model: P2D2-15 / P2D4-15

• Type: Passive Subwoofer

• Nominal diameter: 38 cm (15 inches)

• RMS Power Handling: 400 watts

• Maximum power handling: 800 watts

• Voice Coil Design: Dual Voice Coil (DVC)

• Voice coil diameter: 58 mm

• Voice coil winding height: 32 mm

• Diaphragm material: Kevlar-paper composite diaphragm

• Bead material: foam

• Basket material: Steel

• Diaphragm area (Sd): 894 cm²

• Linear diaphragm stroke (Xmax): ±11 mm

• Maximum mechanical stroke: ±29 mm

• Sound pressure level (1 W / 1 m): 86 dB
  
  

Technical Specifications for P2D2-15 – 2 × 2 Ohms

• Nominal impedance: 2 × 2 ohms

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

• DC resistance (Re): 2 × 1.7 ohms

• Resonance frequency (Fs): 20 Hz

• Mechanical Quality (Qms): 6.4

• Electrical Quality (Qes): 0.69

• Total quality (Qts): 0.62

• Equivalent volume (Vas): 219.6 liters

• Mass in motion (Mms): 327.2 g

• Voice coil inductance (Le): 3.4 mH

• Force factor (BL): 14.1 N/A

• Effective membrane area (Sd): 894 cm²

• Sound pressure level (SPL): 86 dB
  
  

Technical Specifications P2D4-15 – 2 × 4 Ohms

• Nominal impedance: 2 × 4 ohms

• Load impedance: 2 ohms in parallel / 8 ohms in series

• DC resistance (Re): 2 × 3.2 ohms

• Resonance frequency (Fs): 20.9 Hz

• Mechanical Grade (Qms): 5.7

• Electrical quality (Qes): 0.74

• Overall Quality (Qts): 0.66

• Equivalent volume (Vas): 219.6 liters

• Mass in motion (Mms): 300.6 g

• Voice coil inductance (Le): 5.4 mH

• Force factor (BL): 18.4 N/A

• Effective membrane area (Sd): 894 cm²

• Sound pressure level (SPL): 86 dB
  
  

Recommended Case

Enclosed housing

• Recommended net volume: 44.7 liters

• Lower cutoff frequency (-3 dB): 37 Hz (D2) / 38 Hz (D4)

Bass-reflex enclosure

• Recommended net volume: 75.3 liters

• Bass reflex port diameter: 100 mm

• Bass reflex port cross-sectional area: 80 cm²

• Bass reflex tube length: 32 cm

• Tuning frequency (Fb): 32 Hz

• Lower cutoff frequency (-3 dB): 32 Hz (D2) / 33 Hz (D4)
  
  

Dimensions

• Outer diameter: 394 mm (excluding the decorative ring)

• Installation diameter: 353 mm

• Installation depth: 187 mm

• Shipping weight according to the European data sheet: approx. 9.0 kg
  
  

What's Included

• 1 × Rockford Fosgate Punch P2D2-15 or P2D4-15 subwoofer (depending on the selected model)