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Rockford Fosgate Punch P1S4-15 Punch P1 15″ 4-ohm Subwoofer

Rockford Fosgate Punch P1S4-15 Punch P1 15″ 4-ohm Subwoofer


SKU: P1S4-15
Product by: Rockford

The Punch P1 is the first in a world-famous subwoofer family. The Woofer of Choice for vehicle audio enthusiasts since the 1980s. VAST technology improves surface cone area up to 25% and Kevlar fiber reinforced paper cones give bass impact that you can feel. Best in sealed and ventilated enclosures. Soft ABS trim ring included.

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SKU: P1S4-15


sku: P1S4-15

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Key Features:

  • 15″ 4-ohm subwoofer
  • Kevlar® reinforced paper cone
  • nitrile butadiene rubber (NBR) surround
  • hybrid StampCast basket provides strength while minimizing weight and resonance
  • Vertical Attach Surround Technique (VAST™) increases cone area
  • power range: 50-250 watts RMS (500 watts peak power)
  • frequency response: 23-250 Hz
  • sensitivity: 87.5 dB
  • top-mount depth: 7″
  • sealed box volume: 1.3-3.5 cubic feet
  • ported box volume: 2.66 cubic feet
  • grille not included
  • warranty: 1 year


Features & specs

Size 15 -inch
Impedance 4 ohms
Cone Material Kevlar reinforced paper
Surround Material NBR
Ideal Sealed Box Volume (cubic feet) 1.58
Ideal Ported Box Volume (cubic feet) 2.66
Port diameter (inches) 4
Port length (inches) 8
Free-Air No
Dual Voice Coil No
Sensitivity 87.5 dB at 1 watt
Frequency Response 23 – 250 Hz
Max RMS Power Handling 250
Peak Power Handling (Watts) 500
Top Mount Depth (inches) 7
Bottom Mount Depth (inches) N/A
Cutout Diameter or Length (inches) 13 3/4
Vas (liters) 191.5
Fs (Hz) 23
Qts 0.52
Xmax (millimeters) 7
Parts Warranty 1 Year
Labor Warranty 1 Year


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Additional information

Subwoofer size

Airspace Requirements

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Standard Subwoofer Design


4 ohm

Frequency Response, Low


Subwoofer Power Handling RMS