Rockford Fosgate P2D4-8 Punch Series 8" Stage 2 500W Peak Power Handling at 4 Ohms, Dual Voice Coil Stage 2 Car Subwoofer
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What's Inside?
- • (1) 8" Dual 4-ohm voice coil subwoofer
- • Trim ring
- • (8) 1-1/8" Allen head screws
- • 4mm Allen head bit
- • Owner's Manual
Why Choose Rockford Fosgate P2D4-8 Component Car Subwoofer?
Signature Punch Bass Sound
Featuring a dual 4-ohm voice coil configuration, the P2D4-8 offers flexible wiring options to match your amplifier's impedance requirements. This versatility allows for different wiring configurations, such as series or parallel connections, enabling you to optimize the subwoofer's performance and power handling.
Powerful Low End You Crave in Your Ride
The P2D4-8 is built with a Kevlar fiber-reinforced paper cone, providing accurate and responsive bass reproduction. Its Santoprene surround enhances excursion capabilities, improving low-frequency output and reducing distortion.
Equipped with a hybrid StampCast steel basket, the P2D4-8 ensures stability and durability while maintaining a sleek design. Its proprietary spider venting technology helps to dissipate heat, minimizing power compression and ensuring consistent performance over time.
Delivers Satisfying Low-end Frequencies
Whether you want to enhance your car's audio system or add impactful bass to your music, the Rockford Fosgate P2D4-8 offers a reliable and versatile solution. With its solid construction and powerful performance, this subwoofer delivers satisfying low-end frequencies that elevate your listening experience on the road.
Frequently Asked Questions (FAQ)
- • Why isn't the subwoofer producing enough bass?
Check the enclosure volume, amplifier gain, crossover settings, and speaker polarity. An incorrect box design or reversed polarity can significantly reduce bass output and make the system sound weaker than expected.
- • What type of enclosure should I use?
Use a properly designed sealed or ported enclosure that follows the manufacturer's recommended specifications. Correct internal volume and construction help produce deeper, cleaner, and more controlled bass.
- • How should I wire the dual voice coils?
The dual voice coils allow different wiring configurations to achieve various final impedances. Choose a configuration that matches your amplifier's supported load before connecting power.
- • Why does my amplifier go into protect mode when the bass hits?
Check the final impedance, power and ground connections, and speaker wiring for shorts. An incorrect load, voltage drop, or excessive heat can trigger protection during heavy bass passages.
- • Why does the bass sound distorted at higher volume?
Distortion can result from excessive gain, amplifier clipping, or pushing the subwoofer beyond its recommended limits. Lower the gain and verify the amplifier and crossover settings are properly adjusted.
• Why is the enclosure making rattling or buzzing noises?
Inspect the enclosure, mounting screws, speaker terminals, and nearby vehicle panels. Loose hardware or air leaks can vibrate with bass and create noises that may resemble speaker damage.
- • Does it need a break-in period?
A gradual break-in period allows the suspension to loosen naturally during normal use. Start with moderate volume levels and avoid prolonged maximum output during the first several hours.
- • Can I use this with a factory radio?
Yes, but an external amplifier is typically required to provide adequate power. Depending on the vehicle, a line output converter or compatible signal interface may also be necessary.
- • Why does the bass become weak when I increase the volume?
Check for amplifier clipping, voltage drop, protection mode, or an incorrect impedance load. These issues can cause the amplifier to reduce output or shut down when bass demand increases.
- • What amplifier should I use with this subwoofer?
Choose an amplifier that provides appropriate clean RMS power at the final wired impedance. Proper power matching helps deliver strong bass while minimizing clipping and potential speaker damage.
- Diameter : 8 Inch
- Sensitivity : 83 dB
- Impedance : 4 Ohm
- Frequency Response : 43-250 Hz
- Peak Power Handling : 500 Watts
- Top Mount Depth : 4-13/16 Inches
- Shallow Mount : No Inch
- Number of Voice Coils : Dual
- Suggested Sealed Box Volume : 0.2-0.3 Cubic ft.
- Suggested Ported Box Volume : 0.65 Cubic ft.
- Mounting Depth : 4.76 Inches
- RMS Power Handling : 250 Watts
Features:
- Overview: The Rockford Fosgate Punch P2D4-8 is an 8-inch subwoofer with dual 4Ω voice coils. The sub features a StampCast steel frame, quick-release compression terminals, a Kevlar fiber reinforced paper cone, and Santoprene surround. An anodized aluminum voice coil former and spider venting help keep the subwoofer cool.
- Dual 4Ω Voice Coils: The dual 4Ω voice coils offer wiring flexibility; when wired in parallel the woofer presents a 2Ω load, when wired in series the woofer presents an 8Ω load.
- Steel Basket: The P2D4-8 subwoofer features a StampCast steel basket for added rigidity.
- Compression Terminals: The P2D4-8 features spring post terminals which accommodate speaker wire up to 10 gauge.
- CEA-2031 Compliant: Power handling on the P2D4-8 subwoofer conforms to CEA-2031 industry standards. This means the subwoofer has the capacity to handle its rated power under continuous demand, not instantaneous power handling, that over time, can damage voice coils.
- FlexFit Basket: The Flex Fit frame utilizes slots (where possible) instead of single screw sized holes; allowing slight adjustment of the speaker when mounted.
- Trim Ring: To improve the cosmetic look, a decorative trim ring is included that mounts over the flange of the woofer. When using the cast aluminum trim ring the woofer is first mounted with four screws, then the ring is placed on top of the woofer, aligning the final four holes of the woofer with ring. The other four screws are used for these holes to mount the ring and woofer to the enclosure. Without the trim ring the mounting height of the woofer is approximately 7/8 of an inch.
- Sealed Box: Rockford recommends a sealed enclosure with an optimum internal volume of 0.23 cubic feet (from 0.2 to 0.3 cubic feet is acceptable). Sealed enclosures provide the most control over a woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable to all types of music.
- Ported Box: Rockford recommends a ported enclosure with an internal volume of 0.65 cubic feet using one 2" diameter x 8" long port; this yields a tuning frequency of 38.5 Hz. Ported (or vented) enclosures typically provide better overall efficiency than sealed so they are suitable for use with smaller amplifiers, giving you more bass output from less power. However, this efficiency comes at the expense of very low frequency output (below 33 Hz).
Specifications:
- Size:8 -inch
- Impedance (Ohms): 2, 8
- Cone Material: Kevlar reinforced paper
- Surround Material: Santoprene
- Ideal Sealed Box Volume (cubic feet): 0.23
- Ideal Ported Box Volume (cubic feet): 0.65
- Port diameter (inches): 2
- Port length (inches): 8
- Free-Air: No
- Dual Voice Coil: Yes
- Sensitivity: 83 dB at 1 watt
- Frequency Response: 43 - 250 Hz
- Max RMS Power Handling: 250
- Peak Power Handling (Watts): 500
- Top Mount Depth (inches): 4 3/4
- Bottom Mount Depth (inches): N/A
- Cutout Diameter or Length (inches): 7 1/16
- Vas (liters): 9.9
- Fs (Hz): 43
- Qts: 0.52
- Xmax (millimeters): 5.8
- Parts Warranty: 1 Year
- Labor Warranty: 1 Year
- UPC: 780687332662
- Weight: 11
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.
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These subs are crazy good, man! Amazing performance for their size – I push 300 watts RMS at them, 4 ohms, and they handle it like champs. Plus, they look super good. They pack a ton of sound in such a small package. In any genre, I like it loud always, and after years of daily use, this sub only gets louder. Its way better than I expected!
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I had to try out this cool looking sub and was immediately in awe with how good it sounds for its tiny size. Lovely addition to my sound system.
