Punch P2D2-15 / P2D4-15

Buy a 15-inch subwoofer with Kevlar fiber-reinforced paper cone from Rockford Fosgate

The Rockford Fosgate Punch P2D2-15 and P2D4-15 are the subwoofers you can buy online at a great price to take your car hi-fi system to the next level. Why? Thanks to its Kevlar fiber-reinforced paper cones, this 15 subwoofer delivers incredibly rich bass – a truly tangible experience. VAST technology significantly expands the cone area by 25%, directly resulting in more intense bass reproduction. Furthermore, the dual linear spider and high-temperature voice coil offer maximum power handling and durability. With an RMS power of 400 watts and a maximum power handling of 800 watts, nothing stands in the way of this powerhouse. You also benefit from the Masori Lowest Price Guarantee, so you can be sure you're making the best purchase.

VAST technology: 25% larger membrane area for more bass intensity

Punch subwoofers utilize VAST technology to increase the cone surface area by up to 25%. This is notable because a larger cone surface area improves the sound pressure level, thus providing more powerful and clear bass. In practice, this increase means you'll get more efficient bass output from the same enclosure size. While standard subwoofers often have to make do with smaller cone surfaces, VAST technology offers a distinct advantage that translates into the sound reproduction in your vehicle. A smaller cone surface area could compromise bass quality at high volumes.

Double voice coil variants: Efficient matching with D2 and D4

The availability of Rockford Fosgate subwoofers in versions with dual 2-ohm and dual 4-ohm dual voice coils allows you to optimally adapt the system to your amplifier configuration. The D2 allows parallel connection for a 1-ohm load or series connection for 4-ohms, which promotes flexibility in connection technology. The D4 version, on the other hand, offers parallel 2-ohm or series 8-ohm loads. A lower value would make adaptation to higher-impedance systems more difficult, while a higher value would reduce performance.

Power handling: 400 watts RMS for powerful performance

With an RMS power rating of 400 watts and a maximum of 800 watts, the Rockford Fosgate subwoofer ensures you'll experience powerful and consistent bass. Compared to typical car hi-fi subwoofers, which often range in the 200-300 watt RMS range, it clearly stands out for its endurance and power handling. A lower RMS power rating could lead to sound distortion at extreme volumes, while a higher rating would result in unnecessary additional expenditures for higher-power amplifiers.

Resonance frequency: 20 Hz for lowest bass notes

The Punch P2 has a resonant frequency (Fs) of 20 Hz (D2) and 20.9 Hz (D4), making it easy to reproduce extremely low frequencies. These low frequencies are ideal for bass-heavy music. Generally, a lower resonant frequency indicates the subwoofer's ability to reproduce deeper bass. A higher resonant frequency could limit the bass level you get from the system.

Magnet weight of 2.06 kg for stability and performance

With a hefty magnet weight of 2.06 kg, the Rockford Fosgate magnet contributes significantly to the motor's strength and stability, ensuring that the moving parts remain firmly in the hand. This results in a stable and reliable bass response, even at high levels. A lighter magnet could compromise the subwoofer's ability to deliver precise and stable bass notes.

Built-in backplate ventilation for thermal efficiency

The Rockford Fosgate features a swaged, vented backplate that contributes to heat dissipation and protects the subwoofer from overheating. This thermal efficiency translates to a longer lifespan and fewer thermal compromises during intense sessions. Without this feature, the subwoofer could be more susceptible to thermal distortion or even damage during intensive use.

Double linear and Kevlar composite: Textured membrane

The combination of a Kevlar fiber-reinforced paper cone and a double linear spider provides structural strength and durability for the subwoofer. This not only ensures long-lasting performance but also offers resistance to deformation, which is often a problem with other cone materials. A less robust cone design could lead to faster mechanical wear under heavy use.

Subwoofer variables D2 and D4: Impedance as a power factor

Impedance determines the electrical load the subwoofer presents to the amplifier. The Rockford Fosgate D2 subwoofer, with a nominal impedance of dual 2 ohms, and the D4 subwoofer, with a nominal impedance of dual 4 ohms, emphasizes flexibility in system design. Proper tuning prevents power loss and thermal problems. However, too high an impedance could potentially reduce performance, while too low an impedance could overwhelm the amplifier.

PVC magnetic cover for protection and appearance

Finally, the textured PVC magnetic cover not only provides visual appeal but also protection from environmental influences and physical contact. This preserves the long-term performance and aesthetics of the subwoofer. Without this protection, external damage could compromise the system's longevity. You can also benefit from on-site installation in Frankfurt (Oder) , use the expert support FAQ & Help , and expand your knowledge in the Audio Blog .