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Variants
A shallow 8" sub that delivers noticeably clearer, tighter bass than many factory units and works well with stock amps when mounted and wired properly.
Buyer confidence
83%Highlights
- 1 Year Warranty
- M-Roll Santoprene™ surround
- Anodized aluminum cone and dustcap
- Shallow Motor Assembly
Key specs
Full specs- Power Handling (Watts RMS)
- 150 Watts RMS 300 Watts Max
- Size
- 8"
- Nominal Impedance
- Dual 4-Ohm
- Mounting Depth
- 2.66 in. (67.5 mm)
- Speaker Connector
- Dual 10 AWG Compression
- Magnet Weight (oz)
- 37.5 oz. (1.06 Kg)
- Voice Coil Diameter
- 2" (51.6 mm)
- SPL (dB @ 1w/1m)
- 82
Key specs
Full specs- Power Handling (Watts RMS)
- 150 Watts RMS 300 Watts Max
- Size
- 8"
- Nominal Impedance
- Dual 4-Ohm
- Mounting Depth
- 2.66 in. (67.5 mm)
Highlights
Overview- 1 Year Warranty
- M-Roll Santoprene™ surround
- Anodized aluminum cone and dustcap
Review highlights
Based on customer reviewsTight, clear 8" upgrade for OEM systems
A shallow 8" sub that delivers noticeably clearer, tighter bass than many factory units and works well with stock amps when mounted and wired properly.
What buyers praise
- Clear, tight bass that improves factory sound
- Handles more volume without getting muddy
What to watch for
- May require drilling new mounting holes or trimming the trim ring to fit some stock enclosures (trimming can void the speaker warranty)
Overview
The Punch P3S 8" shallow subwoofer (P3SD4-8) delivers bass where mounting depth is limited. It features Dual 4‑Ohm voice coils for wiring flexibility and is rated 150 Watts RMS.
Best for
- Vehicles or locations with limited mounting depth
- Installations that need a compact subwoofer without sacrificing bass
- Setups that benefit from voice-coil wiring options
Key points
- 8" shallow-mount subwoofer designed for depth-constrained spaces
- Dual 4‑Ohm voice coils for wiring flexibility
- 150 Watts RMS power handling
- Technologies listed: Klippel Verified, CEA-2031, FlexFit Basket, Anodized Aluminum Voice Coil Former, Stitched Tinsel Leads, VAST Surround
Fit and use
Designed to fit where traditional deep subwoofers cannot. Match the subwoofer to a compatible amplifier and an appropriate enclosure for intended bass response. Dual voice coils allow multiple wiring options to suit system impedance requirements.
What to know
This model is intended for installations that need a shallow mounting depth; confirm amplifier compatibility with the 150W RMS rating and plan enclosure and wiring accordingly. The listed technologies indicate engineered components and verification standards used in the design.
Highlights
Key features
- 1 Year Warranty
- M-Roll Santoprene™ surround
- Anodized aluminum cone and dustcap
- Shallow Motor Assembly
- StampCast basket with integrated spider venting
- Optimized for both sealed and vented enclosures
- Dual linear spider with embedded 16 AWG tinsel leads
- Diamond cut cast aluminum trim ring with optional grille
- Klippel Verified
- CEA-2031
- FlexFit Basket - Subwoofer
- Anodized Aluminum Voice Coil Former
More info
Manufacturer details
Rockford Fosgate P3S 8" shallow mount subwoofer delivers “Punch” even when depth is limited. The P3SD4-8 features Dual 4-Ohm voice coils for wiring flexibility and 150 Watts RMS power handling.
Additional details
The Rockford Fosgate P3S 8" shallow mount subwoofer delivers Punch, even in depth limited situations. Rockford Fosgate understands all vehicles are not the same, because some cannot accommodate deep subwoofers. In the past, that meant no Bass. Not anymore! Now even depth challenged vehicles can have REAL Bass and the Dual Voice Coil allow configurations for every application. Shallow woofers are specifically designed for spaces where a traditional woofer cannot be used.
Technologies
Klippel Verified
To adorn the ‘Verified with Klippel’ mark, the qualifying company’s loudspeaker engineering personnel must be
CEA-2031
Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards. This means your speaker has
FlexFit Basket - Subwoofer
The slot mounted frame pattern of the FlexFit basket utilizes slots (where feasible) instead of single screw sized
Anodized Aluminum Voice Coil Former
Two things generally happen when voice coils heat-up. They can generate heat close to the melt-down temp of their
Stitched Tinsel Leads
Multipoint "periodic" stitched lead wire technique reduces the mass of each tinsel lead and spreads stress and
Patent: Patent Pending
VAST Surround - Subs
Rockford Fosgate's proprietary surround technique, VAST, provides up to a 25% increase in the speakers effective
Specs
Specifications
24
| Power Handling (Watts RMS) | 150 Watts RMS 300 Watts Max |
| Size | 8" |
| Nominal Impedance | Dual 4-Ohm |
| Mounting Depth | 2.66 in. (67.5 mm) |
| Speaker Connector | Dual 10 AWG Compression |
| Magnet Weight (oz) | 37.5 oz. (1.06 Kg) |
| Voice Coil Diameter | 2" (51.6 mm) |
| SPL (dB @ 1w/1m) | 82 |
| Cutout Diameter | 7.13 in. (181.0 mm) |
| Qes | 1.05 |
| Vas (Liters) | 15.8 |
| Fs (Hz) | 39 |
| Shipping Weight | 8.8 Lbs. (3.99 Kg.) |
| Qts | 0.87 |
| Qms | 5 |
| Xmax (mm) | 8.5 |
| Woofer Displacement | 0.040 cu. ft. (1.13 Liters) |
| Re (Ohms) | 6.0 |
| Le (mH) | 1.46 |
| Sd (cm2) | 220 |
| Subwoofer Type | Shallow |
| Voice Coil Type | Dual Voice Coil |
| Sealed Box Volume (Vb) | 0.25 cu. ft. (7.0 Liters) |
| Vented Box Volume (Vb) | 0.75 cu. ft. (21.2 Liters) |
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Installation resources
Wiring diagrams
9
Wiring Diagram #1
Source: Rockford Fosgate
Wiring Diagram #2
Source: Rockford Fosgate
Wiring Diagram #3
Source: Rockford Fosgate
Wiring Diagram #4
Source: Rockford Fosgate
Wiring Diagram #5
Source: Rockford Fosgate
Wiring Diagram #6
Source: Rockford Fosgate
Wiring Diagram #7
Source: Rockford Fosgate
Wiring Diagram #8
Source: Rockford Fosgate
Wiring Diagram #9
Source: Rockford Fosgate
Box Advisor
Sealed Enclosure
- Recommended volume
- 0.25 cu ft
- Volume range
- 0.2 cu ft to 0.7 cu ft
- Dimensions
- 16.5 in W x 10 in H x 5 in D
- F3
- 49.3 Hz
- Qtc
- 1.29
- Port / ID
- 12 in
- Subwoofer size
- 12 in
- Impedance
- 4 ohm
- Power handling (RMS)
- 150 W
Vented Enclosure
- Recommended volume
- 0.75 cu ft
- Volume range
- 0.65 cu ft to 1 cu ft
- Dimensions
- 24 in W x 14 in H x 6 in D
- F3
- 37 Hz
- Tuning (Fb)
- 47.5 Hz
- Port / ID
- 12 in
- Subwoofer size
- 12 in
- Impedance
- 4 ohm
- Power handling (RMS)
- 150 W
Support
Return Authorization
If you bought this product from Onkar Electronics, use the Contact Us page on the Onkar Electronics website and we will help with return authorization and warranty support. If you purchased it from another dealer, contact that authorized dealer first for return assistance.
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